J 2021

Signatures of dephasing by mirror-symmetry breaking in weak-antilocalization magnetoresistance across the topological transition in Pb1-xSnxSe

KAZAKOV, Alexander; Wojciech BRZEZICKI; Timo HYART; Bartlomiej TUROWSKI; Jakub POLACZYNSKI et. al.

Základní údaje

Originální název

Signatures of dephasing by mirror-symmetry breaking in weak-antilocalization magnetoresistance across the topological transition in Pb1-xSnxSe

Autoři

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

Vydání

Physical Review B, American Physical Society, 2021, 2469-9950

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10302 Condensed matter physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.908

Kód RIV

RIV/00216224:14310/21:00121911

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000662305100003

EID Scopus

2-s2.0-85108533726

Klíčová slova anglicky

BI2SE3 THIN-FILMS; CRYSTALLINE INSULATOR; QUANTUM OSCILLATIONS; PHASE-TRANSITION; TRANSPORT; LOCALIZATION; STATES; METAL

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 14. 7. 2021 09:56, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

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.