H /e Superconducting Quantum Interference through Trivial Edge States in InAs

Folkert K. De Vries, Tom Timmerman, Viacheslav P. Ostroukh, Jasper Van Veen, Arjan J.A. Beukman, Fanming Qu, Michael Wimmer, Andrey A. Kiselev, Leo P. Kouwenhoven, More Authors

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)
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Josephson junctions defined in strong spin orbit semiconductors are highly interesting for the search for topological systems. However, next to topological edge states that emerge in a sufficient magnetic field, trivial edge states can also occur. We study the trivial edge states with superconducting quantum interference measurements on nontopological InAs Josephson junctions. We observe a SQUID pattern, an indication of superconducting edge transport. Also, a remarkable h/e SQUID signal is observed that, as we find, stems from crossed Andreev states.

Original languageEnglish
Article number047702
Number of pages5
JournalPhysical Review Letters
Issue number4
Publication statusPublished - 2018


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