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, Binh-Minh Nguyen, Andrey A. Kiselev, Wei Yi, Marko Sokolich, Michael J. Manfra, Charles M. Marcus, and Leo P. Kouwenhoven
Phys. Rev. Lett. 120, 047702 – Published 26 January 2018
PDFHTMLExport Citation

Abstract

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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 12 September 2017

DOI:https://doi.org/10.1103/PhysRevLett.120.047702

© 2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Folkert K. de Vries1, Tom Timmerman1, Viacheslav P. Ostroukh2, Jasper van Veen1, Arjan J. A. Beukman1, Fanming Qu1, Michael Wimmer1, Binh-Minh Nguyen3, Andrey A. Kiselev3, Wei Yi3, Marko Sokolich3, Michael J. Manfra4, Charles M. Marcus5, and Leo P. Kouwenhoven1,6,*

  • 1QuTech and Kavli Institute of Nanoscience, Delft University of Technology, 2600 GA Delft, The Netherlands
  • 2Instituut-Lorentz, Universiteit Leiden, P.O. Box 9506, 2300 RA Leiden, The Netherlands
  • 3HRL Laboratories, 3011 Malibu Canyon Road, Malibu, California 90265, USA
  • 4Department of Physics and Astronomy and Station Q Purdue, Purdue University, West Lafayette, Indiana 47907, USA
  • 5Center for Quantum Devices and Station Q Copenhagen, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
  • 6Microsoft Station Q Delft, 2600 GA Delft, The Netherlands

  • *l.p.kouwenhoven@tudelft.nl

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 120, Iss. 4 — 26 January 2018

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×