Spatially resolved tunneling spectroscopy of superconducting wires with artificial pinning centers

Y. Levi; O. Millo; N. D. Rizzo; D. E. Prober; L. R. Motowidlo

doi:10.1063/1.120792

Spatially resolved tunneling spectroscopy of superconducting wires with artificial pinning centers

Y. Levi^*, O. Millo, N. D. Rizzo, D. E. Prober, L. R. Motowidlo

^*Corresponding author for this work

Racah Institute of Physics

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

10 Scopus citations

Abstract

We used scanning tunneling microscopy and spectroscopy to study with nanometer resolution the spatial variation of superconductivity in the vicinity of the interface between normal and superconductor regions. The samples were novel superconducting wires consisting of ordered arrays of sub-micron diameter normal metal filaments, either Cu or Ni, embedded in a NbTi superconducting matrix. By taking topographic images simultaneously with current-voltage curves, we obtain information about the local quasi-particle density of states on both sides of the interface.

Original language	English
Pages (from-to)	480-482
Number of pages	3
Journal	Applied Physics Letters
Volume	72
Issue number	4
DOIs	https://doi.org/10.1063/1.120792
State	Published - 1998

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10.1063/1.120792

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abstract = "We used scanning tunneling microscopy and spectroscopy to study with nanometer resolution the spatial variation of superconductivity in the vicinity of the interface between normal and superconductor regions. The samples were novel superconducting wires consisting of ordered arrays of sub-micron diameter normal metal filaments, either Cu or Ni, embedded in a NbTi superconducting matrix. By taking topographic images simultaneously with current-voltage curves, we obtain information about the local quasi-particle density of states on both sides of the interface.",

author = "Y. Levi and O. Millo and Rizzo, {N. D.} and Prober, {D. E.} and Motowidlo, {L. R.}",

year = "1998",

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AU - Motowidlo, L. R.

PY - 1998

Y1 - 1998

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AB - We used scanning tunneling microscopy and spectroscopy to study with nanometer resolution the spatial variation of superconductivity in the vicinity of the interface between normal and superconductor regions. The samples were novel superconducting wires consisting of ordered arrays of sub-micron diameter normal metal filaments, either Cu or Ni, embedded in a NbTi superconducting matrix. By taking topographic images simultaneously with current-voltage curves, we obtain information about the local quasi-particle density of states on both sides of the interface.

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Spatially resolved tunneling spectroscopy of superconducting wires with artificial pinning centers

Abstract

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