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@article{1781720,
author = {Kazakov, Alexander and Brzezicki, Wojciech and Hyart, Timo and Turowski, Bartlomiej and Polaczynski, Jakub and Adamus, Zbigniew and Aleszkiewicz, Marta and Wojciechowski, Tomasz and Domagala, Jaroslaw Z and Caha, Ondřej and Varykhalov, Andrei and Springholz, Gunther and Wojtowicz, Tomasz and Volobuev, Valentine V and Dietl, Tomasz},
article_number = {24},
doi = {http://dx.doi.org/10.1103/PhysRevB.103.245307},
keywords = {BI2SE3 THIN-FILMS; CRYSTALLINE INSULATOR; QUANTUM OSCILLATIONS; PHASE-TRANSITION; TRANSPORT; LOCALIZATION; STATES; METAL},
language = {eng},
issn = {2469-9950},
journal = {Physical Review B},
title = {Signatures of dephasing by mirror-symmetry breaking in weak-antilocalization magnetoresistance across the topological transition in Pb1-xSnxSe},
url = {https://doi.org/10.1103/PhysRevB.103.245307},
volume = {103},
year = {2021}
}
TY - JOUR
ID - 1781720
AU - Kazakov, Alexander - Brzezicki, Wojciech - Hyart, Timo - Turowski, Bartlomiej - Polaczynski, Jakub - Adamus, Zbigniew - Aleszkiewicz, Marta - Wojciechowski, Tomasz - Domagala, Jaroslaw Z - Caha, Ondřej - Varykhalov, Andrei - Springholz, Gunther - Wojtowicz, Tomasz - Volobuev, Valentine V - Dietl, Tomasz
PY - 2021
TI - Signatures of dephasing by mirror-symmetry breaking in weak-antilocalization magnetoresistance across the topological transition in Pb1-xSnxSe
JF - Physical Review B
VL - 103
IS - 24
SP - 245307
EP - 245307
PB - American Physical Society
SN - 24699950
KW - BI2SE3 THIN-FILMS
KW - CRYSTALLINE INSULATOR
KW - QUANTUM OSCILLATIONS
KW - PHASE-TRANSITION
KW - TRANSPORT
KW - LOCALIZATION
KW - STATES
KW - METAL
UR - https://doi.org/10.1103/PhysRevB.103.245307
N2 - Many conductors, including recently studied Dirac materials, show saturation of coherence length on decreasing temperature. This surprising phenomenon is assigned to external noise, residual magnetic impurities, or two-level systems specific to noncrystalline solids. Here, by considering the SnTe-class of compounds as an example, we show theoretically that breaking of mirror symmetry deteriorates Berry's phase quantization, leading to additional dephasing in weak-antilocalization magnetoresistance (WAL-MR). Our experimental studies of WAL-MR corroborate these theoretical expectations in (111) Pb1-xSnxSe thin film with Sn contents x corresponding to both topological crystalline insulator and topologically trivial phases. In particular, we find the shortening of the phase coherence length in samples with intentionally broken mirror symmetry. Our results indicate that the classification of quantum transport phenomena into universality classes should encompass, in addition to time-reversal and spin-rotation invariances, spatial symmetries in specific systems.
ER -
KAZAKOV, Alexander, Wojciech BRZEZICKI, Timo HYART, Bartlomiej TUROWSKI, Jakub POLACZYNSKI, Zbigniew ADAMUS, Marta ALESZKIEWICZ, Tomasz WOJCIECHOWSKI, Jaroslaw Z DOMAGALA, Ondřej CAHA, Andrei VARYKHALOV, Gunther SPRINGHOLZ, Tomasz WOJTOWICZ, Valentine V VOLOBUEV a Tomasz DIETL. Signatures of dephasing by mirror-symmetry breaking in weak-antilocalization magnetoresistance across the topological transition in Pb1-xSnxSe. \textit{Physical Review B}. American Physical Society, 2021, roč.~103, č.~24, s.~245307-245318. ISSN~2469-9950. Dostupné z: https://dx.doi.org/10.1103/PhysRevB.103.245307.
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