Optical Response and Transport in Graphene

石墨烯中的光学响应和传输

• 批准号: 22540326
• 负责人: ANDO Tsuneya
• 金额: $ 2.75万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540326/
• 关键词: メゾスコピック系; 局在 グラフェン; ディラック電子; ナノチューブ; トポロジカル異常; ニュートリノ; ベリー位相; 光学フォノン; ラマン散乱; 磁気フォノン共鳴

The electron motion in graphene is governed by the Weyl equation for massless neutrino. This equation has a topological singularity at zero energy, leading to various interesting phenomena. The most intriguing property is the delta-function singularity in the diamagnetic susceptibility, the origin of which is clarified through theoretical studied from various aspects. Effects on transport properties are also the subject of the intensive study, including the magneto-phonon resonance. Environment effects on excitons in carbon nanotubes are also studied.

石墨烯中的电子运动由无质量中微子的Weyl方程控制。这个方程在零能量处具有拓扑奇点，导致各种有趣的现象。其中最引人注目的是抗磁化率中的δ函数奇异性，通过多方面的理论研究阐明了其起源。对输运性质的影响也是深入研究的主题，包括磁声子共振。研究了环境对碳纳米管中激子的影响。

项目成果

Zero-mode anomalies of massless Dirac electron in graphene

• DOI: 10.1063/1.3575639
• 发表时间: 2011-05
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: T. Ando

Exotic transport properties of monolayer and bilayer graphene

单层和双层石墨烯的奇异传输特性

• 发表时间: 2011
• 作者: Masaki Mori;Yoshihiro Umeda;Kenji Nakagawa;and Taku Ohmori;T. Ando
• 通讯作者: T. Ando

Diamagnetism of graphene with gap in nonuniform mag- netic field

非均匀磁场中带间隙石墨烯的抗磁性

• 发表时间: 2012
• 期刊: J. Phys. Soc. Jpn. 81
• 作者: 辻見裕史;柳澤朋李;最上透;谷口伸彦;Y. Arimura and T. Ando
• 通讯作者: Y. Arimura and T. Ando

Singular orbital magnetism of graphene

石墨烯的奇轨道磁性

• 发表时间: 2011
• 期刊: Solid State Commun.
• 作者: Y.Fujita;B.Rubio;F.Molina;W.Gelletly;M. Koshino and T. Ando
• 通讯作者: M. Koshino and T. Ando

Charged impurity scattering in graphenes: Effects of environmental screening, band gap, and AA stacking

• DOI: 10.1088/1742-6596/302/1/012015
• 发表时间: 2011-07
• 期刊: Journal of Physics: Conference Series
• 作者: T. Ando