Electric Transport in graphene with nano structures

2015 Fiscal Year Final Research Report

• Project/Area Number: 24540339
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Nakanishi Takeshi 国立研究開発法人産業技術総合研究所, 機能材料コンピュテーショナルデザイン研究センター, 主任研究員 (00301771)
• Co-Investigator(Kenkyū-buntansha): ANDO Tsuneya 東京工業大学, 理工学研究科, 特命教授 (90011725)
• Co-Investigator(Renkei-kenkyūsha): MIYAMOTO Yoshiyuki 産業技術総合研究所, 機能材料コンピュテーショナルデザイン研究センター, チーム長 (70500784)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: グラフェン / 有効質量理論 / 電気伝導 / 電子状態計算

Outline of Final Research Achievements

In this project, we studied electronic transport and states in graphene with nano structures. We studied analytically within effective-mass theory and numerically by first-principles time-dependent density functional theory.Main results are followings.
Electronic states of flattened carbon nanotubes were studied, depending on chirality and displacement. The valley Hall conductivity is much enhanced as compared to that in the ideal case without scatterers, and remains appreciable in the presence of large disorder. We have also shown that the optical phonon can enhance the dipole-dipole attraction of polar-compound layered materials, resulting in significant reduction of the interlayer distance.

Free Research Field

物性理論