Anomalous modulation of a zero-bias peak in a hybrid nanowire-superconductor device

We report on transport measurements of an InAs nanowire coupled to niobium nitride leads at high magnetic fields. We observe a zero-bias anomaly (ZBA) in the differential conductance of the nanowire for certain ranges of magnetic field and chemical potential. The ZBA can oscillate in width with eith...

Full description

Saved in:
Bibliographic Details
Published in:Physical review letters 2013-03, Vol.110 (12), p.126406-126406, Article 126406
Main Authors: Finck, A D K, Van Harlingen, D J, Mohseni, P K, Jung, K, Li, X
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report on transport measurements of an InAs nanowire coupled to niobium nitride leads at high magnetic fields. We observe a zero-bias anomaly (ZBA) in the differential conductance of the nanowire for certain ranges of magnetic field and chemical potential. The ZBA can oscillate in width with either the magnetic field or chemical potential; it can even split and re-form. We discuss how our results relate to recent predictions of hybridizing Majorana fermions in semiconducting nanowires, while considering more mundane explanations.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.110.126406