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Title: Tin-doped bismuth: An inhomogeneous superconductor

Abstract

With the use of a high-sensitivity mutual-inductance bridge with a superconducting quantum-interference device detector, ac magnetic susceptibility and contactless resistivity measurements were made down to 12 mK to determine the nature of the zero-resistance transitions seen previously on samples of Sn-doped Bi. The results indicate that this system is not a bulk superconductor but, rather, an interesting example of an inhomogeneous superconductor consisting of segregated tin grains in a semimetallic matrix. Superconductivity originates at the tin sites and propagates via the proximity effect. The emerging superconducting network has a weakly coupled character and can be described reasonably well by a model of randomly distributed expanding superconducting spheres centered on the tin inclusions.

Authors:
;
Publication Date:
Research Org.:
Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120
OSTI Identifier:
5494060
Resource Type:
Journal Article
Journal Name:
Phys. Rev. B: Condens. Matter; (United States)
Additional Journal Information:
Journal Volume: 32:1
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BISMUTH; SUPERCONDUCTIVITY; CARRIER DENSITY; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; IMPURITIES; MAGNETIC SUSCEPTIBILITY; QUANTITY RATIO; TIN; TRANSITION TEMPERATURE; ULTRALOW TEMPERATURE; ELECTRICAL PROPERTIES; ELEMENTS; MAGNETIC PROPERTIES; MATERIALS; METALS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; 360104* - Metals & Alloys- Physical Properties; 656102 - Solid State Physics- Superconductivity- Acoustic, Electronic, Magnetic, Optical, & Thermal Phenomena- (-1987)

Citation Formats

Elzinga, M B, and Uher, C. Tin-doped bismuth: An inhomogeneous superconductor. United States: N. p., 1985. Web. doi:10.1103/PhysRevB.32.88.
Elzinga, M B, & Uher, C. Tin-doped bismuth: An inhomogeneous superconductor. United States. https://doi.org/10.1103/PhysRevB.32.88
Elzinga, M B, and Uher, C. 1985. "Tin-doped bismuth: An inhomogeneous superconductor". United States. https://doi.org/10.1103/PhysRevB.32.88.
@article{osti_5494060,
title = {Tin-doped bismuth: An inhomogeneous superconductor},
author = {Elzinga, M B and Uher, C},
abstractNote = {With the use of a high-sensitivity mutual-inductance bridge with a superconducting quantum-interference device detector, ac magnetic susceptibility and contactless resistivity measurements were made down to 12 mK to determine the nature of the zero-resistance transitions seen previously on samples of Sn-doped Bi. The results indicate that this system is not a bulk superconductor but, rather, an interesting example of an inhomogeneous superconductor consisting of segregated tin grains in a semimetallic matrix. Superconductivity originates at the tin sites and propagates via the proximity effect. The emerging superconducting network has a weakly coupled character and can be described reasonably well by a model of randomly distributed expanding superconducting spheres centered on the tin inclusions.},
doi = {10.1103/PhysRevB.32.88},
url = {https://www.osti.gov/biblio/5494060}, journal = {Phys. Rev. B: Condens. Matter; (United States)},
number = ,
volume = 32:1,
place = {United States},
year = {1985},
month = {7}
}