Kondo-like zero-bias conductance anomaly in a three-dimensional topological insulator nanowire

Sungjae Cho, Ruidan Zhong, John A. Schneeloch, Genda Gu, Nadya Mason

Research output: Contribution to journalArticle

Abstract

Zero-bias anomalies in topological nanowires have recently captured significant attention, as they are possible signatures of Majorana modes. Yet there are many other possible origins of zero-bias peaks in nanowires - for example, weak localization, Andreev bound states, or the Kondo effect. Here, we discuss observations of differential-conductance peaks at zero-bias voltage in non-superconducting electronic transport through a 3D topological insulator (Bi1.33 Sb0.67)Se3 nanowire. The zero-bias conductance peaks show logarithmic temperature dependence and often linear splitting with magnetic fields, both of which are signatures of the Kondo effect in quantum dots. We characterize the zero-bias peaks and discuss their origin.

Original languageEnglish (US)
Article number21767
JournalScientific reports
Volume6
DOIs
StatePublished - Feb 25 2016

ASJC Scopus subject areas

  • General

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