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Topological Protection Brought to Light by the Time-Reversal Symmetry Breaking. / Piatrusha, S. U.; Tikhonov, E. S.; Kvon, Z. D. и др.

в: Physical Review Letters, Том 123, № 5, 056801, 02.08.2019.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

Harvard

Piatrusha, SU, Tikhonov, ES, Kvon, ZD, Mikhailov, NN, Dvoretsky, SA & Khrapai, VS 2019, 'Topological Protection Brought to Light by the Time-Reversal Symmetry Breaking', Physical Review Letters, Том. 123, № 5, 056801. https://doi.org/10.1103/PhysRevLett.123.056801

APA

Piatrusha, S. U., Tikhonov, E. S., Kvon, Z. D., Mikhailov, N. N., Dvoretsky, S. A., & Khrapai, V. S. (2019). Topological Protection Brought to Light by the Time-Reversal Symmetry Breaking. Physical Review Letters, 123(5), [056801]. https://doi.org/10.1103/PhysRevLett.123.056801

Vancouver

Piatrusha SU, Tikhonov ES, Kvon ZD, Mikhailov NN, Dvoretsky SA, Khrapai VS. Topological Protection Brought to Light by the Time-Reversal Symmetry Breaking. Physical Review Letters. 2019 авг. 2;123(5):056801. doi: 10.1103/PhysRevLett.123.056801

Author

Piatrusha, S. U. ; Tikhonov, E. S. ; Kvon, Z. D. и др. / Topological Protection Brought to Light by the Time-Reversal Symmetry Breaking. в: Physical Review Letters. 2019 ; Том 123, № 5.

BibTeX

@article{21e85cdce43c449ba354a9dd18034e34,
title = "Topological Protection Brought to Light by the Time-Reversal Symmetry Breaking",
abstract = "Recent topological band theory distinguishes electronic band insulators with respect to various symmetries and topological invariants, most commonly, the time reversal symmetry and the Z2 invariant. The interface of two topologically distinct insulators hosts a unique class of electronic states - the helical states, which shortcut the gapped bulk and exhibit spin-momentum locking. The magic and so far elusive property of the helical electrons, known as topological protection, prevents them from coherent backscattering as long as the underlying symmetry is preserved. Here we present an experiment that brings to light the strength of topological protection in one-dimensional helical edge states of a Z2 quantum spin-Hall insulator in HgTe. At low temperatures, we observe the dramatic impact of a tiny magnetic field, which results in an exponential increase of the resistance accompanied by giant mesoscopic fluctuations and a gap opening. This textbook Anderson localization scenario emerges only upon the time-reversal symmetry breaking, bringing the first direct evidence of the topological protection strength in helical edge states.",
keywords = "ANDERSON LOCALIZATION, WEAK-LOCALIZATION, QUANTUM, TRANSITION, TRANSPORT, ABSENCE, BACKSCATTERING, DIFFUSION, ELECTRONS, NOISE",
author = "Piatrusha, {S. U.} and Tikhonov, {E. S.} and Kvon, {Z. D.} and Mikhailov, {N. N.} and Dvoretsky, {S. A.} and Khrapai, {V. S.}",
note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",
year = "2019",
month = aug,
day = "2",
doi = "10.1103/PhysRevLett.123.056801",
language = "English",
volume = "123",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "5",

}

RIS

TY - JOUR

T1 - Topological Protection Brought to Light by the Time-Reversal Symmetry Breaking

AU - Piatrusha, S. U.

AU - Tikhonov, E. S.

AU - Kvon, Z. D.

AU - Mikhailov, N. N.

AU - Dvoretsky, S. A.

AU - Khrapai, V. S.

N1 - Publisher Copyright: © 2019 American Physical Society.

PY - 2019/8/2

Y1 - 2019/8/2

N2 - Recent topological band theory distinguishes electronic band insulators with respect to various symmetries and topological invariants, most commonly, the time reversal symmetry and the Z2 invariant. The interface of two topologically distinct insulators hosts a unique class of electronic states - the helical states, which shortcut the gapped bulk and exhibit spin-momentum locking. The magic and so far elusive property of the helical electrons, known as topological protection, prevents them from coherent backscattering as long as the underlying symmetry is preserved. Here we present an experiment that brings to light the strength of topological protection in one-dimensional helical edge states of a Z2 quantum spin-Hall insulator in HgTe. At low temperatures, we observe the dramatic impact of a tiny magnetic field, which results in an exponential increase of the resistance accompanied by giant mesoscopic fluctuations and a gap opening. This textbook Anderson localization scenario emerges only upon the time-reversal symmetry breaking, bringing the first direct evidence of the topological protection strength in helical edge states.

AB - Recent topological band theory distinguishes electronic band insulators with respect to various symmetries and topological invariants, most commonly, the time reversal symmetry and the Z2 invariant. The interface of two topologically distinct insulators hosts a unique class of electronic states - the helical states, which shortcut the gapped bulk and exhibit spin-momentum locking. The magic and so far elusive property of the helical electrons, known as topological protection, prevents them from coherent backscattering as long as the underlying symmetry is preserved. Here we present an experiment that brings to light the strength of topological protection in one-dimensional helical edge states of a Z2 quantum spin-Hall insulator in HgTe. At low temperatures, we observe the dramatic impact of a tiny magnetic field, which results in an exponential increase of the resistance accompanied by giant mesoscopic fluctuations and a gap opening. This textbook Anderson localization scenario emerges only upon the time-reversal symmetry breaking, bringing the first direct evidence of the topological protection strength in helical edge states.

KW - ANDERSON LOCALIZATION

KW - WEAK-LOCALIZATION

KW - QUANTUM

KW - TRANSITION

KW - TRANSPORT

KW - ABSENCE

KW - BACKSCATTERING

KW - DIFFUSION

KW - ELECTRONS

KW - NOISE

UR - http://www.scopus.com/inward/record.url?scp=85070257840&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.123.056801

DO - 10.1103/PhysRevLett.123.056801

M3 - Article

C2 - 31491287

AN - SCOPUS:85070257840

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 5

M1 - 056801

ER -

ID: 21255090