Theory for Quantum Transport Properties of Atomically Thin Materials

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13507
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics I
• Research Institution: Kwansei Gakuin University
• Principal Investigator: WAKABAYASHI Katsunori 関西学院大学, 理工学部, 教授 (50325156)
• Research Collaborator: LIU Feng 関西学院大学, 理工学部, 博士研究員
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 原子膜物質 / グラフェン / 理論 / ナノサイエンス / トポロジカル物質 / 円偏光

Outline of Final Research Achievements

In this research project, we have investigated the electronic and optical properties of atomically-thin materials such as graphene and transition metal dichalcogenide (TMDC) monolayers based on the theoretical modeling methods and first-principles calculations. Main findings in this project is following: [1] unveiling of peculiar emergence mechanism of localized magnetic states at the graphene domain boundaries [Sci. Rep. (2015)], [2] finding of stable Dirac cones in CaSi2 and their momentum shift [Phys. Rev. B (2015)], [3] valley polarization of carbon nanotubes under circularly-polarized Irradiations [Appl. Phys. Exp. (2016)], [4] theoretical propose of new topological phases without a Berry curvature [Phys. Rev. Lett. (2017)]. Our work will serve for designing new class of electronic devices on the basis of atomically-thin materials.

Free Research Field

ナノサイエンス