Research on the spin g-factor singularity of a hybrid quantum well

混合量子阱自旋g因子奇点研究

• 批准号: 23840004
• 负责人: MOON Pilkyung
• 金额: $ 2.08万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23840004/
• 关键词: ハイブリッドナノ構造; バンド構造工学; グラフェン; 超格子; フラクタルバン ド構造; 量子ホール効果; quantum ring; 電子輸送; 光学特性; 超格子構造; twisted bilayer graphene; フラクタル

(1) I proposed a hybrid quantum ring structure which is composed of compressively strained material and tensile strained material, and showed that each band (electron, light hole, heavy hole) exhibits quite different band alignment (type-I and type-II). I showed that the band probability and distribution are very sensitive to geometric change. (2) I showed that the effects of lattice potential and magnetic field compete in graphene-based two-dimensional superlattices. I investigated the fractal band structures and quantum Hall effect in these structures, and also showed that the optical absorption spectra strongly depend on the in-plane rotation angle.

(1)提出了一种由压应变材料和张应变材料组成的混合量子环结构，并证明了每个能带（电子、轻空穴、重空穴）具有完全不同的能带排列（Ⅰ型和Ⅱ型）。我证明了能带概率和分布对几何变化非常敏感。(2)我表明，在石墨烯基二维超晶格中，晶格势和磁场的影响相互竞争。研究了这些结构中的分形能带结构和量子霍尔效应，并发现光吸收谱强烈依赖于面内旋转角。

项目成果

Hofstadter butterfly and quantumHall effect in twisted bilayer graphene

扭曲双层石墨烯中的霍夫施塔特蝴蝶和量子霍尔效应

• 发表时间: 2012
• 作者: Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino
• 通讯作者: Pilkyung Moon and Mikito Koshino

Energy spectrum, quantum Hall effect, and valley splitting in graphene onhexagonal boron nitride

六方氮化硼石墨烯的能谱、量子霍尔效应和谷分裂

• 发表时间: 2013
• 作者: Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino
• 通讯作者: Pilkyung Moon and Mikito Koshino

Optical Absorption Spectrum in Twisted Bilayer Graphene

扭曲双层石墨烯的光学吸收光谱

• 发表时间: 2012
• 作者: Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino
• 通讯作者: Pilkyung Moon and Mikito Koshino

Energy spectrum, quantum Hall effect, and valley splitting in graphene on hexagonal boron nitride

六方氮化硼石墨烯的能谱、量子霍尔效应和谷分裂

• 发表时间: 2013
• 作者: Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino
• 通讯作者: Pilkyung Moon and Mikito Koshino

Fractal energy spectrum and quantum Hall effect in graphene-basedtwo-dimensional superlattice

石墨烯基二维超晶格中的分形能谱和量子霍尔效应

• 发表时间: 2012
• 作者: Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino;Pilkyung Moon and Mikito Koshino
• 通讯作者: Pilkyung Moon and Mikito Koshino