Strong interband Faraday rotation in 3D topological insulator Bi2Se3

被引：17

作者：

Ohnoutek, L. ^{[1
]}

Hakl, M. ^{[2
]}

Veis, M. ^{[1
]}

Piot, B. A. ^{[2
]}

Faugeras, C. ^{[2
]}

Martinez, G. ^{[2
]}

Yakushev, M. V. ^{[3
,4
,5
]}

Martin, R. W. ^{[3
]}

Drasar, C. ^{[6
]}

Materna, A. ^{[7
]}

Strzelecka, G. ^{[7
]}

Hruban, A. ^{[7
]}

Potemski, M. ^{[2
]}

Orlita, M. ^{[1
,2
]}

机构：

[1] Charles Univ Prague, Inst Phys, CZ-12116 Prague 2, Czech Republic

[2] CNRS UJF UPS INSA, Lab Natl Champs Magnet Intenses, F-38042 Grenoble, France

[3] Univ Strathclyde, SUPA, Dept Phys, Glasgow G4 0NG, Lanark, Scotland

[4] Ural Fed Univ, Ekaterinburg 620002, Russia

[5] RAS, Inst Solid State Chem, Ekaterinburg 620002, Russia

[6] Univ Pardubice, Fac Chem Technol, Inst Appl Phys & Math, Pardubice 53210, Czech Republic

[7] Inst Elect Mat Technol, PL-01919 Warsaw, Poland

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

关键词：

D O I：

10.1038/srep19087

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The Faraday effect is a representative magneto-optical phenomenon, resulting from the transfer of angular momentum between interacting light and matter in which time-reversal symmetry has been broken by an externally applied magnetic field. Here we report on the Faraday rotation induced in the prominent 3D topological insulator Bi2Se3 due to bulk interband excitations. The origin of this non-resonant effect, extraordinarily strong among other non-magnetic materials, is traced back to the specific Dirac-type Hamiltonian for Bi2Se3, which implies that electrons and holes in this material closely resemble relativistic particles with a non-zero rest mass.

引用

页数：7

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