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Field-Tunable 0-π-Transitions in SnTe Topological Crystalline Insulator SQUIDs

Schönle, J.; Borisov, K.; Klett, R.; Dyck, D.; Balestro, F.; Reiss, G.; Wernsdorfer, W.

The manifestation of spin-orbit interactions, long known to dramatically affect the band structure of heavy-element compounds, governs the physics in the surging class of topological matter. A particular example is found in the new family of topological crystalline insulators. In this systems transport occurs at the surfaces and spin-momentum locking yields crystal-symmetry protected spin-polarized transport. We investigated the current-phase relation of SnTe thin films connected to superconducting electrodes to form SQUID devices. Our results demonstrate that an assisting in-plane magnetic field component can induce 0-π-transitions. We attribute these findings to giant g-factors and large spinorbit coupling of SnTe topological crystalline insulator, which provides a new platform for investigation of the interplay between spin-orbit physics and topological transport.

Verlagsausgabe §
DOI: 10.5445/IR/1000092511
Veröffentlicht am 28.03.2019
DOI: 10.1038/s41598-018-38008-1
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2045-2322
KITopen-ID: 1000092511
HGF-Programm 43.21.02 (POF III, LK 01) Quantum Properties of Nanostructures
Erschienen in Scientific reports
Verlag Nature Research
Band 9
Heft 1
Seiten Art. Nr.: 1987
Vorab online veröffentlicht am 13.02.2019
Nachgewiesen in Scopus
Web of Science
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