Curvature-induced valley-dependent spin-orbit interaction

被引：0

作者：

Yamakage, Ai ^{[1
]}

Sato, T. ^{[2
]}

Okuyama, R. ^{[3
]}

Funato, T. ^{[4
,5
]}

Izumida, W. ^{[6
]}

Sato, K. ^{[7
]}

Kato, T. ^{[2
]}

Matsuo, M. ^{[5
,8
,9
,10
]}

机构：

[1] Nagoya Univ, Dept Phys, Nagoya 4648602, Japan

[2] Univ Tokyo, Inst Solid State Phys, Kashiwa 2778581, Japan

[3] Meiji Univ, Dept Phys, Kawasaki 2148571, Japan

[4] Keio Univ, Ctr Spintron Res Network, Yokohama 2238522, Japan

[5] Univ Chinese Acad Sci, Kavli Inst Theoret Sci, Beijing 100190, Peoples R China

[6] Tohoku Univ, Dept Phys, Sendai 9808578, Japan

[7] Natl Inst Technol, Sendai Coll, Sendai 9893128, Japan

[8] Univ Chinese Acad Sci, CAS Ctr Excellence Topol Quantum Computat, Beijing 100190, Peoples R China

[9] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai 3191195, Japan

[10] RIKEN Ctr Emergent Matter Sci, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW B | 2025年 / 111卷 / 04期

基金：

日本学术振兴会;

关键词：

BILBAO CRYSTALLOGRAPHIC SERVER; NANOTUBES;

D O I：

10.1103/PhysRevB.111.045121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We construct a general theoretical framework for describing curvature-induced spin-orbit interactions on the basis of group theory. Our theory can systematically determine the emergence of spin splitting in the band structure according to symmetry in the wave number space and the bending direction of the material. As illustrative examples, we derive the curvature-induced spin-orbit coupling for carbon and silicon nanotubes. Our theory offers a strategy for designing valley-contrasting spin-orbit coupled materials by tuning their curvatures.

引用

页数：12

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