2025/05/15(Thu) 10:30 -12:00 五樓第一會議室 5F, 1st Meeting Room
Title
Quantum transport in spin-orbit-proximitized graphene and strained graphene
Speaker
劉明豪教授 (國立成功大學物理學系) Prof. Ming-Hao Liu (Department of Physics, National Cheng Kung University)Abstract
Starting with a brief introduction to the Landauer-Buettiker formalism and real-space Green's function method, this talk focuses on two latest research topics in my group: spin-dependent transport in graphene proximitized by transition metal dichalcogenides [1,2] and spinless transport in strained graphene [3]. In the first topic, our quantum transport simulations confirmed the enhanced spin-orbit coupling in graphene due to the proximity effect by matching the transverse magnetic focusing experiment done by the group of D.-K. Ki [1] and very recently showed [2] how to potentially detect the transport signature arising from the newly discovered radial Rashba spin-orbit coupling [4]. The second topic will discuss magnetotransport and pseudomagnetotransport simulations in strained graphene [3]. Whether spin-orbit-coupled graphene or spinless strained graphene, the scalable tight-binding model [5] is found to be of crucial importance for simulating experimentally sized graphene samples.
[1] Qing Rao, Wun-Hao Kang, Hongxia Xue et al., Nat. Communs 14, 6124 (2023).
[2] Wun-Hao Kang, Michael Barth, Andreas Costa et al., Phys. Rev. Lett. 133, 216201 (2024).
[3] Alina Mrenca-Kolasinska, Christophe De Beule, Jia-Tong Shi et al., to be submitted.
[4] Tobias Frank, Paulo E. Faria Junior, Klaus Zollner, and Jaroslav Fabian, Phys. Rev. B 109, L241403 (2024).
[5] Ming-Hao Liu, Peter Rickhaus, Peter Makk et al., Phys. Rev. Lett. 114, 036601 (2015).
Language
演講語言 (Language): in English