李定國 / 兼任研究員

研究興趣

• 凝態理論物理
• 高溫超導體
• 強作用電子系統
• 計算物理與最佳化演算
• 三維影像與 x光繞射顯微術

獎項及殊榮

經歷

• 2022/3- 國立清華大學物理系特聘研究講座教授
• 2019/9-2022/2國立中山大學物理系研究講座教授
• 2020/8-2021/6國立中山大學物理系代理系主任
• 2012-2018中央研究院物理研究所所長
• 2008-2012中央研究院學術諮詢總會執行祕書
• 2007-2012中央研究院學術事務組主任
• 2004-2019中央研究院物理研究所特聘研究員
• 2004-2006奈米國家型科技計畫 計畫總主持人
• 2001-國立清華大學合聘教授
• 1998-2016國立台灣大學合聘教授
• 1997-2003國家理論科學研究中心物理組主任
• 1996-2004中央研究院物理所研究員
• 1981-1997美國維吉尼亞州理工大學物理系助理教授、副教授、教授
• 1979-1981加州大學聖塔芭芭拉分校理論物理所博士後研究
• 1975-1979紐約市立大學物理所博士後研究

學術著作

期刊論文

• [1]     An-Lun Chin, Shun-MinYang, Hsiang-Hsin Chen, Min-Tsang Li, Tsung-Tse Lee, Ying-Jie Chen, Ting-Kuo Lee, Cyril Petibois, Xiaoqing Cai, Chian-Ming Low, Francis Chee Kuan Tan, Alvin Teo, Eng Soon Tok, Edwin B.L. Ong, Yen-Yin Lin, I-Jin Lin, Yi-Chi Tseng, Nan-Yow Chen, Chi-Tin Shih, Jae-Hong Lim, Jun Lim, Jung-Ho Je, Yoshiki Kohmura, Tetsuya Ishikawa, Giorgio Margaritondo*, Ann-Shyn Chiang*,Yeukuang Hwu*, 2020, “A synchrotron x-ray imaging strategy to map large animal brains”, CHINESE JOURNAL OF PHYSICS, 65, 24-32. (SCIE) (IF: 3.237; SCI ranking: 33.7%)
  
  
• [2]     Chi-Feng Huang, Wei-Hau Chang*, Po-Nan Li, Ting-Kuo Lee, Yasumasa Joti, Yoshinori Nishino, Takashi Kimura, Akihiro Suzuki, Yoshitaka Bessho, Tsung-Tse Lee, Mei-Chung Chen, Yi-Yun Chen, Shun-Min Yang, Yeukuang Hwu, Shih-Hsin Huang, Hsin-Hung Lin, Peilin Chen, Yung-Chieh Tseng, Che Ma, Tsui-Ling Hsu, Chi-Huey Wong, Kenzuki Tono, Tetsuya Ishikawa, and Keng S. Liang, 2020, “XFEL coherent diffraction imaging for weakly scattering particles using heterodyne interference”, AIP ADVANCES, 10, 055219. (SCIE) (IF: 1.548; SCI ranking: 82.4%,89.7%,76.3%)
  
  
• [3]     Yen-Wen Lu, Po-Hao Chou, Chung-Hou Chung, Ting-Kuo Lee, and Chung-Yu Mou*, 2020, “Enhanced quantum oscillations in Kondo insulators”, PHYSICAL REVIEW B, 101, 115102. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [4]     Jie Hou, Ting-Kuo Lee, Yaowu Guo, Jie Lou*, Yan Chen*, 2019, “Inter-layer dy2−z2-wave superconductivity in an effectively doped spin-1 ladder”, NEW JOURNAL OF PHYSICS, 21, 113047. (SCIE) (IF: 3.732; SCI ranking: 25.6%)
  
  
• [5]     Jie Hou, Ting-Kuo Lee*, Jie Lou, and Yan Chen, 2019, “Charge ordered states in t-J-U model”, PHYSICAL REVIEW B, 100, 144516. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [6]     Li-An Chu, Chieh-Han L, Shun-Min Yang, Yen-Ting Liu, Kuan-Lin Feng, Yun-Chi Tsai, Wei-Kun Chang, Wen-Cheng Wang, Shu-Wei Chang, Peilin Chen, Ting-Kuo Lee, Yeu-Kuang Hwu, Ann-Shyn Chiang*, Bi-Chang Chen*, 2019, “Rapid single-wavelength lightsheet localization microscopy for clarified tissue, Nature Communications”, NATURE COMMUNICATIONS, 10, 4762. (SCIE) (IF: 14.919; SCI ranking: 5.5%)
  
  
• [7]     Jie Hou, T. K. Lee, Jie Lou and Yan Chen, 2019, “Emergence of dxy-wave Superconductivity in a doped two-leg diagonal ladder”, PHYSICAL REVIEW B, 99, 094510. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [8]     Y. Y. Chang*, F. Hsu, S. Kirchner, C. Y. Mou, T. K. Lee, and C. H. Chung, 2019, “Strange superconductivity near an antiferromagnetic heavy fermion quantum critical point”, PHYSICAL REVIEW B, 99, 094513. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [9]     Wei-Lin Tu and Ting-Kuo Lee*, 2019, “Evolution of pairing orders between pseudogap and superconducting phases of cuprate superconductors”, SCIENTIFIC REPORTS, 9, 1719. (SCIE) (IF: 4.38; SCI ranking: 23.3%)
  
  
• [10]     Pok-Man Chiu, Cheng-Yi Huang, Wan-Ju Li, and Ting-Kuo Lee*, 2018, “Emergence of novel topological phases by stacking of two-dimensional lattices with nonsymmorphic symmetry”, Journal of Physics: Condensed Matter, 31, 035501.
  
  
• [11]     Tamar Shapira, Hen Alpern, Shira Yochelis, Ting-Kuo Lee, Chao-Cheng Kaun, Yossi Paltiel, Gad Koren, and Oded Millo*, 2018, “Unconventional order parameter induced by chiral molecules adsorbed on a metal proximity-coupled to a superconductor”, PHYSICAL REVIEW B, 98, 214513. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [12]     Feng Xu, Po-Hao Chou, Chung-Hou Chung, Ting-Kuo Lee, and Chung-Yu Mou*, 2018, “Strain-induced superconducting pair-density-wave states in graphene”, PHYSICAL REVIEW B, 98, 205103. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [13]     Chi-Feng Huang, Keng S. Liang, Tsui-Ling Hsu, Tsung-Tse Lee, Yi-Yun Chen Shun-Min Yang, Hsiang-Hsin Chen, Shih-Hsin Huang, Wei-Hau Chang, 「Ting-Kuo Lee」, Peilin Chen, Kuei-En Peng, Chien-Chun Chen, Cheng-Zhi Shi, Yu-Fang Hu, Giorgio Margaritondo, Tetsuya Ishikawa, Chi-Huey Wong and Y. Hwu*, 2018, “Free-Electron-Laser Coherent Diffraction Images Individual Drug-Carrying Liposome Particles in Solution”, NANOSCALE, 10, 2820. (SCIE) (IF: 7.79; SCI ranking: 17.9%,18.5%,27.1%,14.4%)
  
  
• [14]     Wei-Cheng Lee*, Ting-kuo Lee, 2017, “Antiferromagnetism in Hubbard model using a cluster slave-spin method”, PHYSICAL REVIEW B, 96, 115114. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [15]     Yu-Chuan Lin, Yeukuang Hwu, Guo-Shu Huang, Michael Hsiao, Tsung-Tse Lee, Shun-Min Yang, Ting-Kuo Lee, Nan-Yow Chen, Sung-Sen Yang, Ann Chen* and Shuk-Man Ka*, 2017, “Differential synchrotron X-ray imaging markers based on the renal microvasculature for tubulointerstitial lesions and glomerulopathy”, SCIENTIFIC REPORTS, 7, 3488. (SCIE) (IF: 4.38; SCI ranking: 23.3%)
  
  
• [16]     Lei Yin*, Hai-Cang-Ren, T. K. Lee and Defu Hou, 2017, “Momentum analyticity of the holographic electric polarizatbility in 2+1 dimensions”, JOURNAL OF HIGH ENERGY PHYSICS, 04, 126. (SCIE) (IF: 5.81; SCI ranking: 17.2%)
  
  
• [17]     Peayush Choubey, Wei-Lin Tu, Ting-Kuo Lee and P. J. Hirschfeld, 2017, “Incommensurate charge ordered states in the t-t’-J model”, New Journal of Physics, Volume 19, 1-15. (SCIE) (IF: 3.732; SCI ranking: 25.6%)
  
  
• [18]     Huan-Kuang Wu,T. K. Lee, 2017, “Spectral evolution with doping of an antiferromagnetic Mott state”, Phys. Rev. B, B95, 035133, 1-7. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [19]     Wan-Ju Li, Sung-Po Chao* and T. K. Lee, 2016, “Controversy over large proximity induced s wave like pairing from a d wave superconductor”, PHYSICAL REVIEW B, 035140. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [20]     Po-Nan Li, Zong-Han Wu, Chien-Nan Hsiao, Ting-Kuo Lee and Chien-Chun Chen*, 2016, “Determination of three-dimensional atomic positions from tomographic reconstruction using ensemble empirical mode decomposition”, NEW JOURNAL OF PHYSICS, 18, 083025. (SCIE) (IF: 3.732; SCI ranking: 25.6%)
  
  
• [21]     Po-Hao Chou, Liang-Jun Zhai, Chung-Hou Chung, Chung-Yu Mou*, T. K. Lee, 2016, “Emergence of a Fermionic finite-temperature critical point in a Kondo lattice”, PHYSICAL REVIEW LETTERS, 116, 177002. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [22]     Wei-Lin Tu,T. K. Lee, 2016, “Genesis of charge orders in high temperature superconductors”, Scientific Reports, (6)18675. (SCIE) (IF: 4.38; SCI ranking: 23.3%)
  
  
• [23]     Wan-Ju Li, Cheng-Ju Lin and Ting-kuo Lee*, 2016, “Signatures of strong correlation effects in resonant inelastic x-ray scattering studies on Cuprates”, PHYSICAL REVIEW B, 94, 075127. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [24]     Lei Hao* and T. K. Lee, 2015, “Effective low energy theory for superconducting topological insulators”, JOURNAL OF PHYSICS-CONDENSED MATTER, 27,105701. (SCIE) (IF: 2.333; SCI ranking: 59.4%)
  
  
• [25]     Te-Chih Shung, Chung-Yu Mou, T. K. Lee and Yang-Yuan Chen*, 2015, “Surface-dominated transport and enhanced thermoelectric performance in topological insulator Bi1.5Sb0.5Te1.7Se1.3”, Nanoscale, 7, 518-523. (SCIE) (IF: 7.79; SCI ranking: 17.9%,18.5%,27.1%,14.4%)
  
  
• [26]     Lei Hao*, Guiling Wang, Ting-Kuo Lee, Jun Wang, Wei-Feng Tsai and Yong-Hong Yang, 2014, “Anisotropic spin singlet pairings in CuxBi2Se3 and Bi2Te3”, PHYSICAL REVIEW B, 89, 214505. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [27]     Ti-Yen Lan, Po-Nan Li and T. K. Lee*, 2014, “Method to enhance resolution of x-ray coherent diffraction imaging for non-crystalline bio-samples”, NEW JOURNAL OF PHYSICS, 16, 033016. (SCIE) (IF: 3.732; SCI ranking: 25.6%)
  
  
• [28]     Xufeng Kou, Shih-Ting Guo, Yabin Fan, Lei Pan, Murong Lang, Ying Jiang, Qiming Shao, Tianxiao Nie, Koichi Murata, Jianshi Tang, Yong Wang, Liang He, Ting-Kuo Lee, Wei-Li Lee, and Kang L. Wang*, 2014, “Scale-invariant quantum anomalous Hall effect in magnetic topological insulators beyond two-dimensional limit”, PHYSICAL REVIEW LETTERS, 113, 137201. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [29]     Chia-Chi Chien, Ivan M. Kempson, Cheng Liang Wang, H. H. Chen, Yeukuang Hwu, N. Y. Chen, T. K. Lee, Kelvin K.-C. Tsai, Ming-Sheng Liu, Kwang-Yu Chang, C. S. Yang, and G. Margaritondo*, 2013, “Complete microscale profiling of tumor microangiogenesis: A microradiological methodology reveals fundamental aspects of tumor angiogenesis and yields an array of quantitative parameters for its characterization ”, BIOTECHNOLOGY ADVANCES, 31, 396. (SCIE) (IF: 14.227; SCI ranking: 2.5%)
  
  
• [30]     Yingying Peng, Jianqiao Meng, Daixiang Mou, Junfeng He, Lin Zhao, Yeu Wu, Guodong Liu, Xiaoli Dong, Shaolong He, Jun Zhang, Xiaoyang Wang, Qinjun Peng, Zhimin Wang, Shenjin Zhang, Feng Yang, Chuangtian Chen, Zuyan Xu, T. K. Lee and X. J. Zhou*, 2013, “Disappearance of nodal gap across the insulator-superconductor transition in a copper-oxide superconductor”, Nature Communications, 4,2459. (SCIE) (IF: 14.919; SCI ranking: 5.5%)
  
  
• [31]     Te-Chih Hsiung, Ding-Yuan Chen, Li Zhao, Yi-Hsin Lin, Chung-Yu Mou, Ting-Kuo Lee, Maw-Kuen Wu, and Yang-Yuan Chen*, 2013, “Enhanced surface mobility and quantum oscillations in topological insulator Bi1.5Sb0.5Te1.7Se1.3 nanoflakes”, APPLIED PHYSICS LETTERS, 103, 163111. (SCIE) (IF: 3.791; SCI ranking: 29.4%)
  
  
• [32]     Han Ma, T. K. Lee and Yan Chen*, 2013, “Formation and local symmetry of Holstein polaron in the t-J model”, NEW JOURNAL OF PHYSICS, 15, 043045. (SCIE) (IF: 3.732; SCI ranking: 25.6%)
  
  
• [33]     Sing-Ming Huang*, Chung-Yu Mou and Ting-kuo Lee, 2013, “Intrinsic high-temperature superconductivity in ternary iron selenides”, PHYSICAL REVIEW B, 88, 174510. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [34]     Ing-Shouh Hwang, Che-cheng Chang, Chien-Hung Lu, Shih-Chin Liu, Yuan-Chih Chang, Ting-Kuo Lee, Horng-Tay Jeng, Hong-Shi Kuo, Chun-Yueh Lin, Chia-Seng Chang, Tien T. Tsong, 2013, “Investigation of single-walled carbon nanotubes with a low-energy electron point projection microscopy”, NEW JOURNAL OF PHYSICS, 15, 043015. (SCIE) (IF: 3.732; SCI ranking: 25.6%)
  
  
• [35]     Chung-Pin Chou*, Frank Pollmann, T. K. Lee, 2012, “Matrix-Product based projected wave function ansatz for quantum many-body ground states”, PHYSICAL REVIEW B, 86,041105. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [36]     Chung-Pin Chou, Fan Yang and T. K. Lee*, 2012, “Grand-canonical variational approach for the t-J model”, PHYSICAL REVIEW B, 85,054510. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [37]     Chung-Pin Chou and Ting-Kuo Lee , 2012, “Nature of the inhomogeneous state of the extended t-J model on a square lattice ”, PHYSICAL REVIEW B, 85, 104511. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [38]     Chien-Chun Chen, Chien-Hung Lu, D. Chien, Jianwei Miao, T. K. Lee*, 2011, “A method for three-dimensional image reconstruction of radiation-sensitive samples with X-ray diffraction microscopy”, PHYSICAL REVIEW B, 84, 024112. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [39]     Chia-Chi Chien, Guilin Zhang, Y. Hwu*, Ping Liu, Weisheng Yue, Jianqi Sun, Yan Li, Hongjie Xue, Lisa X. Xu, Chang Hai Wang, Nanyow Chen, Chien Hung Lu, Ting-Kuo Lee, Yuh-Cheng Yang, Yen-Ta Lu, Yu-Tai Ching, T. F. Shih, P. C. Yang, J. H. Je, G. Margaritondo, 2011, “Detecting small lung tumors in mouse models by refractive-index microradiology”, Analytical & Bioanalytical Chemistry, 401, 827. (SCIE) (IF: 4.157; SCI ranking: 25.6%,25.3%)
  
  
• [40]     Chang-Ran Wang, Wen-Sen Lu, Lei Hao, Wei-Li Lee*, T. K. Lee, Feng Lin, I-Chun Cheng and Jain-Zhang Chen, 2011, “Enhanced thermoelectric power in dual-gated bilayer graphene”, PHYSICAL REVIEW LETTERS, 107, 186602. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [41]     Lei Hao, T. K. Lee, 2011, “Surface spectral function in the superconducting state of a topological insulator”, PHYSICAL REVIEW B, 83, 134516. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [42]     Lei Hao*, Peter Thalmeier and T. K. Lee, 2011, “Topological insulator ribbon: surface states and dynamical response”, PHYSICAL REVIEW B, 84, 235303. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [43]     Lei Hao*, T. K. Lee, 2010, “Thermopower of multilayer graphene”, PHYSICAL REVIEW B, 82, 245415. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [44]     R. Dronyak*, K. S. Liang, Jin-Sheng Tsai, Yuri P. Stetsko, T. K. Lee, F. R. Chen, 2010, “Electron Coherent Diffraction Tomography of a Nanocrystal”, APPLIED PHYSICS LETTERS, 96, 221907. (SCIE) (IF: 3.791; SCI ranking: 29.4%)
  
  
• [45]     Chung-Pin Chou, T. K.Lee*, 2010, “Mechanism of formation of half-doped stripes in underdoped cuprates”, PHYSICAL REVIEW B, 81, 060503. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [46]     Huaidong Jiang, Changyong Song, C. C. Chen, Rui Xu, Kevin S. Raines, Benjamin P. Fahimian, Chien-Hung Lu, T. K. Lee, Akio Nakashima, Jun Urano, Tetsuya Ishikawa, Fuyuhiko Tamanoi and Jianwei Miao*, 2010, “Quantitative 3D Imaging of Whole, Unstained Cells by X-ray Diffraction Microscopy”, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 107,11234. (SCIE) (IF: 11.205; SCI ranking: 11%)
  
  
• [47]     Lei Hao, T. K. Lee*, 2010, “Thermopower of gapped bilayer graphene”, PHYSICAL REVIEW B, 81,165445. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [48]     R. Dronyak, K. S. Liang, Yuri P. Stetsko, T. K. Lee, C. K. Feng, Jin-Sheng Tsai and F. R. Chen*, 2009, “Electron diffractive imaging of nano-objects using a guided method with a dynamic support”, APPLIED PHYSICS LETTERS, 95,111908. (SCIE) (IF: 3.791; SCI ranking: 29.4%)
  
  
• [49]     N. Fukushima, C. P. Chou and T. K. Lee*, 2009, “Impurity potential renormalization by strong electron correlation”, Physical Review B, 79(18),184510. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [50]     Chien-Chun Chen, Jianwei Miao and T. K. Lee, 2009, “Tomographic image alignment in 3D coherent diffraction microscopy”, PHYSICAL REVIEW B, 79(5),052102. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [51]     N. Fukushima, C.P. Chou and T. K. Lee, 2008, “Impurity scattering effects in STM studies of high-Tc superconductors”, JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 69,3046. (SCIE) (IF: 3.995; SCI ranking: 38%,33.3%)
  
  
• [52]     C. P. Chou, T. K. Lee and C. M. Ho, 2008, “Spectral weights of the 2-dimensional t–J-type models: Wave function ”, JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 69,2993. (SCIE) (IF: 3.995; SCI ranking: 38%,33.3%)
  
  
• [53]     C.P. Chou, T. K. Lee, 2008, “Variaitonal approach to strong correlation in the photoemission of electron-doped superconductors”, JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 69,2944. (SCIE) (IF: 3.995; SCI ranking: 38%,33.3%)
  
  
• [54]     Chung-Pin Chou, Noboru Fukushima, and T. K. Lee, 2008, “Cluster-glass wave function in the two-dimensional extended t-J model”, Phys. Rev. B, 78:134530. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [55]     J. Y. Gan, M. Moir, T.K. Lee and S. Maekawa, 2008, “Coexistence of superconductivity and antiferromagnetism in self-doped bilayer t-t’-J model”, Phys. Rev. B, 78:134530. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [56]     C. C. Chen, Jianwei Miao, C. R. Wang and T. K. Lee, 2007, “Application of the optimization technique to non-crystalline x-ray diffraction microscopy-Guided hybrid input-out method (GHIO)”, Phys. Rev. B, 76, 064113. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [57]     C.L. Huang, J.-Y. Lin, Y.T. Chang, C.P. Sun, H.Y. Shen, C.C. Chou, H. Berger, T.K. Lee and H.D. Yang, 2007, “Experimental evidence for a two-gap structure of superconducting NbSe2: A specific-heat study in external magnetic fields”, Phys. Rev. B, 76, 212504. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [58]     K. K. Ng and T. K. Lee, 2007, “Field-induced supersolid phase in spin dimer XXZ systems”, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310:1371-1373. (SCIE) (IF: 2.993; SCI ranking: 56%,47.8%)
  
  
• [59]     Y.Y. Chen, P. H. Huang, M. N. Ou, C.R. Wang, Y.D. Yao, T.K. Lee, M. Y. Ho, J. M. Lawrence, and C. H. Booth, 2007, “Kondo interactions and magnetic correlations in CePt2 nanocrystals”, Phys. Rev. Lett., 98, 157206. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [60]     C. P. Chou, T.K. Lee and C. M. Ho, 2007, “Low-energy spectra of the t-J type models studied by variational approach”, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310, 474-479. (SCIE) (IF: 2.993; SCI ranking: 56%,47.8%)
  
  
• [61]     Changyong Song, Damien Ramunno-Johnson, Yoshinori Nishino, Yoshiki Kohmura, Tetsuya Ishikawa, Chien-Chun Chen, T. K. Lee and Jianwei Miao, 2007, “Phase retrieval from exactly oversampled diffraction intensity through deconvolution”, Phys. Rev. B, 75:012102. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [62]     C. T. Shih, J. J. Wu, C. P. Chou, Y. C. Chen and T. K. Lee, 2007, “Variational phase diagram of the electron-doped two-dimensional extended t-J model”, Chinese Journal of Physics, 45:207. (SCIE) (IF: 3.237; SCI ranking: 33.7%)
  
  
• [63]     C. L. Huang, J.Y. Lin, C. P. Sun, Lee, Ting-Kuo, J. D. Kim, E. M. Choi, S. I. Lee and H. D. Yang, 2006, “Comparative analysis of specific heat of YNi2B2C using nodal and two-gap models”, PHYSICAL REVIEW B, 73:012502. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [64]     C. R. Hsing, M. Y. Chou and Lee, Ting-Kuo, 2006, “Exchange-correlation energy in molecules: a variational quantum Monte Carlo study”, Phys. Rev. A, 74, 032507. (SCIE) (IF: 3.14; SCI ranking: 31.3%,27%)
  
  
• [65]     Kai-Yu Yang, C. T. Shih, C. P. Chou, S. M. Huang, Lee, Ting-Kuo, T. Xiang and F. C. Zhang, 2006, “Low energy physical properties of high Tc superconducting Cu-oxides – a comparison between plain vanilla RVB theory and experiments”, Phys. Rev. B, 73:224513. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [66]     K. K. Ng and Lee, Ting-Kuo, 2006, “Numerical study of magnetic field induced ordering in BaCuSi2O6 and related systems”, Phys. Rev. B, 73, 014433. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [67]     Lee, Ting-Kuo, C.T. Shih and C.M. Ho, 2006, “Spectra of the high Tc cuprates understood by variational studies of the t-J type models”, JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 67:150-153. (SCIE) (IF: 3.995; SCI ranking: 38%,33.3%)
  
  
• [68]     C. P. Chou, Lee, Ting-Kuo and C. M. Ho, 2006, “Spectral weights, d-wave pairing amplitudes, and particle-hole tunneling asymmetry of a strongly correlated superconductor”, Phys. Rev. B, 74, 092503. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [69]     K. K. Ng and Lee, Ting-Kuo, 2006, “Supersolid phase in spin dimmer XXZ systems under magnetic field”, Phys. Rev. Lett., 97, 127204. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [70]     Jianwei Miao, Chien-Chun Chen, Changyong Song, Yoshinori Nishino, Yoshiki Kohmura, Tetsuya Ishikawa, Damien Ramunno-Johnson, Lee, Ting-Kuo and Subhash H. Risbud, 2006, “Three-dimensional GaN-Ga2O3 core shell structure revealed by x-ray diffraction microscopy”, Phys. Rev. Lett., 97:215503. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [71]     C.T. Shih, J. J. Wu, Y.C. Chen, C. Y. Mou, C. P. Chou, R. Eder and T.K. Lee, 2005, “Antiferromagnetism and superconductivity of the two-dimensional extended t-J model”, Low Temperature Physics, 31:757. (SCIE) (IF: 0.923; SCI ranking: 91.3%)
  
  
• [72]     Shih CT, Chen YC and Lee TK, 2005, “D-wave pairing of the two-dimensional extended t-J model”, CHINESE JOURNAL OF PHYSICS, 43, 543-546. (SCIE) (IF: 3.237; SCI ranking: 33.7%)
  
  
• [73]     Yuan QS, Lee TK and Ting CS, 2005, “Spin dynamics in the antiferromagnetic phase of electron-doped cuprate superconductors”, PHYSICAL REVIEW B, 71:134522. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [74]     C.T. Shih, Y.C. Chen, C. P. Chou and T.K. Lee, 2004, “Absence of coexistence of superconductivity and antiferromagnetism of hole-doped two-dimensional extended t-J model”, Phys. Rev. B, 70:220502. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [75]     Shih CT, Lee TK and Eder R et al., 2004, “Enhancement of pairing correlation by t(') in the two-dimensional extended t-J model”, PHYSICAL REVIEW LETTERS, 92:227002. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [76]     Yuan QS, Chen Y and Lee TK et al., 2004, “Fermi surface evolution in the antiferromagnetic state for the electron-doped t-t(')-t('')-J model”, PHYSICAL REVIEW B, 69:214523. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [77]     X.G. Wan, L. Zhou, J.M. Dong, T.K. Lee and D.S. Wang, 2004, “Orbital polarization, surface enhancement and quantum confinement in nano-cluster magnetism”, Phys. Rev. B, 69:174414. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)
  
  
• [78]     Chou CI, Han RS and Lee TK et al., 2003, “A guided Monte Carlo approach to optimization problems”, LECTURE NOTES IN COMPUTER SCIENCE, 2690:447-451.
  
  
• [79]     C.I. Chou, R.S. Han, S.P. Li and T.K. Lee, 2003, “Guided simulated annealing method for optimization problems”, Physical Review E, 67:066704. (SCIE) (IF: 2.529; SCI ranking: 35.3%,14.5%)
  
  
• [80]     W.C. Lee, T.K. Lee, C.M. Ho and P.W. Leung, 2003, “Low-energy spectra in t-J-type models at low doping levels”, PHYSICAL REVIEW LETTERS, 91: 057001. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [81]     T. K. Lee, C. M. Ho and Naoto Nagaosa, 2003, “Theory for slightly doped antiferromagnetic Mott insulators”, PHYSICAL REVIEW LETTERS, 90: 067001. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  
• [82]     T. K. Lee, C. M. Ho, Naoto Nagaosa and W.C. Lee, 2003, “Theory of slightly doped antiferromagnetic Mott insulators”, JOURNAL OF LOW TEMPERATURE PHYSICS, 131: 169-179. (SCIE) (IF: 1.57; SCI ranking: 74.4%,76.8%)
  
  
• [83]     N. Nagaosa, T.K. Lee, C. M. Ho, T. Tohyama, Y. Shibata and S. Maekawa, 2003, “Theory of slightly doped Mott insulator”, PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 388:15-18. (SCIE) (IF: 1.241; SCI ranking: 83.8%,82.6%)
  
  
• [84]     T.K. Lee, C. T. Shih, Y. C. Chen and H. Q. Lin, 2002, “Comment on "Superconductivity in the two-dimensional t- j model"”, PHYSICAL REVIEW LETTERS, 89: 279702. (SCIE) (IF: 9.161; SCI ranking: 8.1%)
  
  

發現與突破

• [1]     西元年：2019
  研究人員(中)：李定國、杜韋霖
  研究人員(英)：LEE, TING-KUO, Wei-Lin Tu
  研究成果名稱(中)：銅氧超導體中配對序在贗能隙相與超導相之間的演化
  研究成果名稱(英)：Evolution of pairing orders between pseudogap and superconducting phases of cuprate superconductors
  簡要記述(中)：當溫度高於超導溫度且為低參雜時，存在於銅氧高溫超導體中的贗能隙相一直令人感到困惑。此相的特色是，在ＡＲＰＥＳ實驗中，動量空間裡部份的費米面會殘留（稱為費米弧），而其他部分的費米面會因能隙的產生而消失。當溫度低於超導溫度時，這些費米弧就轉變成d波的超導能隙。為了瞭解這個現象，我們研究一個低溫的強關聯模型，並且發現了一個特殊的相可以同時包含兩種配對序參量：其中一種序參量的古柏對總動量為零，而另一種的不為零。具有動量的配對態其配對序也會在空間上有所變化，也就是所謂的配對密度波 (PDW)。這些ＰＤＷ同時也會和電荷密度與晶格內形狀因子的調制交織在一起。這兩種不同的配對序造成了一個像是有兩個能隙的能譜，而這樣的能譜正符合銅氧超導體上的ＡＲＰＥＳ實驗所觀察到的現象。當溫度上升時，零動量的配對序消失但是有限動量的配對序仍然存在，於是形成了費米弧。結果，我們所計算的準粒子能譜在不同參雜與溫度之下的行為的確與ＡＰＰＥＳ及ＳＴＳ實驗所觀察到的現象相似。我們也更進一步討論了因為單向ＰＤＷ造成的對稱破壞所導致的結果，以及在實驗上去探測這樣一個在贗能隙相中之ＰＤＷ態的可能性。
  簡要記述(英)：One of the most puzzling problems of high temperature cuprate superconductor is the pseudogap phase (PG) at temperatures above the superconducting transition temperature in the underdoped regime. The PG phase is found by the angle-resolved photoemission spectra (ARPES) to have a gap at some regions in momentum space and a fraction of Fermi surface remained, known as Fermi arcs. The arc turns into a d-wave SC gap with a node below the SC transition temperature. Here, by studying a strongly correlated model at low temperatures, we obtained a phase characterized by two kinds of pairing order parameters with the total momentum of the Cooper pair to be zero and finite. The finite momentum pairing is accompanied with a spatial modulation of pairing order, i.e. a pair density wave (PDW). These PDW phases are intertwined with modulations of charge density and intra-unit cell form factors. The coexistence of the two different pairing orders provides the unique two-gaps like spectra observed by ARPES for superconducting cuprates. As temperature raises, the zero-momentum pairing order vanishes while the finite momentum pairing orders are kept, thus Fermi arcs are realized. The calculated quasiparticle spectra have the similar doping and temperature dependence as reported by ARPES and scanning tunneling spectroscopy (STS). The consequence of breaking symmetry between x and y due to the unidirectional PDW and the possibility to probe such a PDW state in the PG phase is discussed.
  

  主要相關著作：

  Wei-Lin Tu and Ting-Kuo Lee*, 2019, “Evolution of pairing orders between pseudogap and superconducting phases of cuprate superconductors”, SCIENTIFIC REPORTS, 9, 1719. (SCIE) (IF: 4.38; SCI ranking: 23.3%)

  
  
  
• [2]     西元年：2017
  研究人員(中)：李定國、Peayush Choubey、杜韋霖、P J Hirschfeld
  研究人員(英)：LEE, TING-KUO, Peayush Choubey, Wei-Lin Tu and P J Hirschfeld
  研究成果名稱(中)：在t-t’-J模型中不相稱的電荷有序態
  研究成果名稱(英)：Incommensurate charge ordered states in the t-t’-J model
  簡要記述(中)：我們使用了Gutzwiller平均場論來研究t-t’-J模型在大尺度下的不相稱電荷有序態。我們特別探討了不相稱電荷調制態(incommensurate charge modulated states)的性質，而此態也就是文獻中所謂的點狀配對密度波(nPDW)態。此態混和了位置與連結的電荷序以及調制的d波配對序。其特色為具有均勻的配對振福以及晶格內d密度波形狀因子。我們的方法是利用Wannier函數來計算連續性的局部能量狀態密度(LDOS)，以便與最近的BSCCO-2212銅氧超導體的ＳＴＭ實驗結果做比較。我們也對銅與氧的子晶格做傅立葉轉換來獲得晶格內形狀因子與空間的相差異。我們發現nPDW態的上述兩項性質與實驗資料十分吻合。我們也做了相稱電荷調制態的計算，並且發現結果與實驗不符。因此，我們認為nPDW態應該就是低參雜銅氧超導體在超導態中被實驗觀察到的電荷密度波相。
  簡要記述(英)：We study the incommensurate charge ordered states in the t – – t J ¢ model using the Gutzwiller mean field theory on large systems. In particular, we explore the properties of incommensurate charge modulated states referred to as nodal pair density waves(nPDW) in the literature. nPDW states intertwine site and bond charge order with modulated d-wave pair order, and are characterized by a nonzero amplitude of uniform pairing; they also manifest a dominant intra-unit cell d-density wave form factor. To compare with a recent scanning tunneling microscopy (STM)study (Hamidian et al 2015 Nat. Phys. 12 150) of the cuprate superconductor BSCCO-2212, we compute the continuum local density of states(LDOS) at a typical STM tip height using the Wannier function based approach. By Fourier transforming Cu and O sub-lattice LDOS we also obtain bias-dependent intra-unit cell form factors and spatial phase difference. We find that in the nPDW state the behavior of form factors and spatial phase difference as a function of energy agrees remarkably well with the experiment.This is in contrast to commensurate charge modulated states, which we show do not agree with experiment. We propose that the nPDW states are good candidates for the charge density wave phase observed in the superconducting state of underdoped cuprates.
  

  主要相關著作：

  Peayush Choubey, Wei-Lin Tu, Ting-Kuo Lee and P. J. Hirschfeld, 2017, “Incommensurate charge ordered states in the t-t’-J model”, New Journal of Physics, Volume 19, 1-15. (SCIE) (IF: 3.732; SCI ranking: 25.6%)

  
  
  
• [3]     西元年：2016
  研究人員(中)：李定國、杜韋霖
  研究人員(英)：LEE, TING-KUO, Wei-Lin Tu
  研究成果名稱(中)：高溫超導體中有序電荷態的起源
  研究成果名稱(英)：Genesis of charge orders in high temperature superconductors
  簡要記述(中)：銅氧高溫超導體的研究多態共存現象，一直都是十分令人困惑的。這些不同的態不僅包含了均勻的超導態與反鐵磁態，也包含許多低能量的有序電荷態，比如說單向的電荷密度波或是雙向的棋盤式密度結構。最近的實驗指出，在不同的銅氧超導體家族中，這些電荷密度波的晶格內形狀因子(intra-unit cell form factor)呈現出不同的對稱性。因此，我們利用重整化平均場理論來研究一個著名的描述銅氧超導體的強關聯模型。我們得到了很多不同的有序電荷態。這些不同的態不僅能量非常接近，並非由不同費米面來產生。我們得到的所有自洽解，都同時含有配對超導電子密度波與電荷密度波，其中的一些甚至還含有自旋密度波。隨著參雜度(doping)的增加，上述大部分的態都在低參雜區域(underdoped regime)內就消失了！只有一個具有高d-形狀因子的態在１９％的電洞參雜度下才消失。這個１９％與實驗上觀察到的現象是一致的。而且，經過一些特定的調整之後，這些態都會產生超導序。
  簡要記述(英)：One of the most puzzling facts about cuprate high-temperature superconductors in the lightly doped regime is the coexistence of uniform superconductivity and/or antiferromagnetism with many low-energy charge-ordered states in a unidirectional charge density wave or a bidirectional checkerboard structure. Recent experiments have discovered that these charge density waves exhibit different symmetries in their intra-unit-cell form factors for different cuprate families. Using a renormalized mean-field theory for a well-known, strongly correlated model of cuprates, we obtain a number of charge-ordered states with nearly degenerate energies without invoking special features of the Fermi surface. All of these self-consistent solutions have a pair density wave intertwined with a charge density wave and sometimes a spin density wave. Most of these states vanish in the underdoped regime, except for one with a large d-form factor that vanishes at approximately 19% doping of the holes, as reported by experiments. Furthermore, these states could be modified to have a global superconducting order, with a nodal-like density of states at low energy.
  

  主要相關著作：

  Wei-Lin Tu,T. K. Lee, 2016, “Genesis of charge orders in high temperature superconductors”, Scientific Reports, (6)18675. (SCIE) (IF: 4.38; SCI ranking: 23.3%)

  
  
  
• [4]     西元年：2010
  研究人員(中)：李定國、周崇斌、李定國
  研究人員(英)：LEE, TING-KUO, Chung-Pin Chou, T. K. Lee
  研究成果名稱(英)：Mechanism of formation of half-doped stripes in underdoped cuprates
  簡要記述(英)：Following our long term effort to understand the low energy phase of high temperature superconductors, recently we have studied the formation of stripe-like states in the t-J type models. In 2008 we found that these stripe states almost have the same energy as the uniform d-wave superconducting state. By using a variational Monte Carlo approach with this recently proposed stripe wave function, we showed that the strong correlation included in a t-J-type model has essentially all the necessary ingredients to form these stripes with modulations of charge density, spin magnetization, and pair field. If a perturbative effect of electron-phonon coupling to renormalize the effective mass or the hopping rate of holes is considered with the model, we find the half-doped stripes, which has on the average one half of a hole in one period of charge modulation, to be most stable energetic wise in the underdoped region, with doping concentration between 1/12 and 1/8. This is in good agreement with the observation in the neutron-scattering experiments.
  

  主要相關著作：

  Chung-Pin Chou, T. K.Lee*, 2010, “Mechanism of formation of half-doped stripes in underdoped cuprates”, PHYSICAL REVIEW B, 81, 060503. (SCIE) (IF: 4.036; SCI ranking: 38.7%,25.6%,31.9%)

  
  
  
• [5]     西元年：2010
  研究人員(中)：李定國
  研究人員(英)：LEE, TING-KUO, Huaidong Jiang, Changyong Song, Chien-Chun Chen, Rui Xu, Kevin S. Raines, Benjamin P. Fahimian, Chien-Hung Lu,Ting-Kuo Lee, Akio Nakashima, Jun Urano, Tetsuya Ishikawa, Fuyuhiko Tamanoi, and Jianwei Miao
  研究成果名稱(英)：Quantitative 3D imaging of whole, unstained cells by using X-ray diffraction microscopy
  簡要記述(英)：Here, we
  report quantitative 3D imaging of a whole, unstained cell at a resolution
  of 50–60 nm by X-ray diffraction microscopy.We identified
  the 3D morphology and structure of cellular organelles including
  cell wall, vacuole, endoplasmic reticulum, mitochondria, granules,
  nucleus, and nucleolus inside a yeast spore cell. Furthermore, we
  observed a 3D structure protruding from the reconstructed yeast
  spore, suggesting the spore germination process. In collaboration with our experimental partners, we provide two theoretical tools for image reconstruction: the guided hybrid input0output method and the new alignment algorithm. These methods help to achieve improved resolution wiht only 25 projections used.
  

  主要相關著作：

  Huaidong Jiang, Changyong Song, C. C. Chen, Rui Xu, Kevin S. Raines, Benjamin P. Fahimian, Chien-Hung Lu, T. K. Lee, Akio Nakashima, Jun Urano, Tetsuya Ishikawa, Fuyuhiko Tamanoi and Jianwei Miao*, 2010, “Quantitative 3D Imaging of Whole, Unstained Cells by X-ray Diffraction Microscopy”, PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 107,11234. (SCIE) (IF: 11.205; SCI ranking: 11%)

  
  
  
• [6]     西元年：2008
  研究人員(中)：李定國、周崇斌、福島昇、李定國
  研究人員(英)：LEE, TING-KUO, Chung-Pin Chou, Noboru Fukushima, T. K. Lee
  研究成果名稱(中)：t-J 模型的非均勻態波函數
  研究成果名稱(英)：Clutser-glass wave function in the two-dimensional extended t-J model
  簡要記述(中)：高溫超導體有一個令人困惑現象，在低掺雜區超導態是一個非均勻態，由雜亂的線條態(stripe state)組成。這個現象常被用來質疑解釋高溫超導的t-J模型，需要考慮其他作用力來造成與超導競爭的不均勻相，而且這些作用力也可能是造成超導的機制而並非是很多人想到的superexchange作用力J。我們最近的工作(物理評論B78, 134530 (2008))大致解決了這個困難。
  我們以共振價鍵(Resonating Valence Bond)的觀念發展出一個解釋線條態的波函數得到了很驚訝的結果，這些由雜亂線條態組成的不均勻態原來就是t-J模型該有的一些狀態，不需要加入其他的作用力來產生這些不均勻態，長距離的超導關聯性質並不受這些雜亂度(disorder)影響，而且它有node及線性態密度，這些不平常的結果都與實驗相符。
  簡要記述(英)：The presence of inhomogeneous states like periodic stripes or random-oriented stripe domains in high temperature superconductors has been used to argue against the simple t-J model as it seems to imply the existence of competing orders that could be generated by other interactions. Further more, these interactions could be the main origin of superconductivity mechanism instead of the super exchange interaction J as believed by many. This important but valid criticism on t-J type models has been resolved by us recently (Phys. Rev. B78, 134530 (2008)). We have proposed a wave function for the stripe state based on the resonating valence bond idea. A very surprising result is found. The presence of the inhomogeneous state with randomly oriented four-lattice-constant stripe domain is actually an inherent nature of the t-J model. There is no need to introduce a competing interaction to understand the existence of these glass-like states. The long-range pairing correlation is not much influenced by the disorder in the glass state which also has nodes and linear density of states.