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
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.