Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit

Ch Renner; A. D. Kent; Ph Niedermann; Fischer; F. Lévy

doi:10.1103/PhysRevLett.67.1650

Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit

Ch Renner, A. D. Kent, Ph Niedermann, Fischer, F. Lévy

Research output: Contribution to journal › Article › peer-review

Abstract

The local density of states of a superconducting vortex core has been measured as a function of disorder in the alloy system Nb1-xTaxSe2 using a low-temperature scanning tunneling microscope. The peak observed in the zero-bias conductance at a vortex center is found to be very sensitive to disorder. As the mean free path is decreased by substitutional alloying the peak gradually disappears and for x=0.2 the density of states in the vortex center is found to be equal to that in the normal state. The vortex-core spectra hence may provide a sensitive measure of the quasiparticle scattering time.

Original language	English (US)
Pages (from-to)	1650-1652
Number of pages	3
Journal	Physical Review Letters
Volume	67
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.67.1650
State	Published - 1991

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.67.1650

Cite this

@article{edf476f8d62b4a508722c1c1e153ee90,

title = "Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit",

abstract = "The local density of states of a superconducting vortex core has been measured as a function of disorder in the alloy system Nb1-xTaxSe2 using a low-temperature scanning tunneling microscope. The peak observed in the zero-bias conductance at a vortex center is found to be very sensitive to disorder. As the mean free path is decreased by substitutional alloying the peak gradually disappears and for x=0.2 the density of states in the vortex center is found to be equal to that in the normal state. The vortex-core spectra hence may provide a sensitive measure of the quasiparticle scattering time.",

author = "Ch Renner and Kent, {A. D.} and Ph Niedermann and Fischer and F. L{\'e}vy",

year = "1991",

doi = "10.1103/PhysRevLett.67.1650",

language = "English (US)",

volume = "67",

pages = "1650--1652",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

TY - JOUR

T1 - Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit

AU - Renner, Ch

AU - Kent, A. D.

AU - Niedermann, Ph

AU - Fischer,

AU - Lévy, F.

PY - 1991

Y1 - 1991

N2 - The local density of states of a superconducting vortex core has been measured as a function of disorder in the alloy system Nb1-xTaxSe2 using a low-temperature scanning tunneling microscope. The peak observed in the zero-bias conductance at a vortex center is found to be very sensitive to disorder. As the mean free path is decreased by substitutional alloying the peak gradually disappears and for x=0.2 the density of states in the vortex center is found to be equal to that in the normal state. The vortex-core spectra hence may provide a sensitive measure of the quasiparticle scattering time.

AB - The local density of states of a superconducting vortex core has been measured as a function of disorder in the alloy system Nb1-xTaxSe2 using a low-temperature scanning tunneling microscope. The peak observed in the zero-bias conductance at a vortex center is found to be very sensitive to disorder. As the mean free path is decreased by substitutional alloying the peak gradually disappears and for x=0.2 the density of states in the vortex center is found to be equal to that in the normal state. The vortex-core spectra hence may provide a sensitive measure of the quasiparticle scattering time.

UR - http://www.scopus.com/inward/record.url?scp=4244122428&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4244122428&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.67.1650

DO - 10.1103/PhysRevLett.67.1650

M3 - Article

AN - SCOPUS:4244122428

SN - 0031-9007

VL - 67

SP - 1650

EP - 1652

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

ER -

Scanning tunneling spectroscopy of a vortex core from the clean to the dirty limit

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this