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

被引：2

作者：

Schoenle, Joachim ^{[1
,2
,4
]}

Borisov, Kiril ^{[5
]}

Klett, Robin ^{[3
]}

Dyck, Denis ^{[3
]}

Balestro, Franck ^{[1
,2
]}

Reiss, Guenter ^{[3
]}

Wernsdorfer, Wolfgang ^{[1
,2
,4
,5
]}

机构：

[1] CNRS, Inst Neel, 25 Rue Martyrs, F-38042 Grenoble, France

[2] Univ Grenoble Alpes, 25 Rue Martyrs, F-38042 Grenoble, France

[3] Bielefeld Univ, Dept Phys, Ctr Spinelect Mat & Devices, Univ Str 25, D-33612 Bielefeld, Germany

[4] Karlsruhe Inst Technol, Phys Inst PHI, Wolfgang Gaede Str 1, D-76131 Karlsruhe, Germany

[5] Karlsruhe Inst Technol, Inst Nanotechnol INT, Hermann von Helmholtz Pl 1, D-76334 Eggenstein Leopoldshafen, Germany

来源：

SCIENTIFIC REPORTS | 2019年 / 9卷 / 1期

关键词：

D O I：

10.1038/s41598-018-38008-1

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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-pi-transitions. We attribute these findings to giant g-factors and large spin-orbit coupling of SnTe topological crystalline insulator, which provides a new platform for investigation of the interplay between spin-orbit physics and topological transport.

引用

页数：7

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