凝態理論seminar
Probing minibands in gated graphene superlattice by magnetic focusing
演講者 : Alina Mreńca-Kolasińska 助理教授 (AGH University, Faculty of Physics and Applied Computer Science)
演講地點 :
理學教學新大樓物理系 5F 36567會議室
演講時間 :
2023 / 06 / 14
16:00
Graphene is an excellent base for gate-induced superlattices (SLs). Periodic modulation of the on-site energy was shown to lead to the reconstruction
of the band structure and formation of higher-order Dirac cones. What remains unexplored in gated SLs so far is the transport at weak magnetic fields.
The main focus of this presentation is a theoretical study of transverse magnetic focusing (TMF) in a 2D square SL for probing the mini band structure [1].
Our modeling paves the way to band structure engineering in graphene.
[1] A. Mreńca-Kolasińska, S.-C. Chen, M.-H. Liu, arXiv:2304.07478
of the band structure and formation of higher-order Dirac cones. What remains unexplored in gated SLs so far is the transport at weak magnetic fields.
The main focus of this presentation is a theoretical study of transverse magnetic focusing (TMF) in a 2D square SL for probing the mini band structure [1].
Our modeling paves the way to band structure engineering in graphene.
[1] A. Mreńca-Kolasińska, S.-C. Chen, M.-H. Liu, arXiv:2304.07478
