Work

Anomalous Modulation of a Zero-Bias Peak in a Hybrid Nanowire-Superconductor Device

Year: 2013

Type: article

Abstract: 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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.110.126406

Authors: A. D. K. Finck, D. J. Van Harlingen, P. K. Mohseni, K. Jung, X. Li

Institution: University of Illinois Urbana-Champaign

Language: English

Topic: Topological Materials and Phenomena

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, U.S. Department of Energy, Division of Materials Research