Vacuum tunneling spectroscopy of thin film and bulk polycrystalline superconductors

K. W. Ng, Z. G. Khim, Danny P. Shum, E. L. Wolf

Research output: Contribution to journalArticle

Abstract

The "squeezable junction" method of Moreland and Hansma has been applied to study the superconducting energy gap of co-sputtered MoRe films and of arc melted and annealed polycrystals of LiTi2O4, with Tc = 11.3 K. The energy gap of LiTi2O4 is determined to be 1.95 ± 0.03 mV corresponding to 2Δ kBT>c = 4.00 ± 0.06, making this metal a strong coupling superconductor.

Original languageEnglish (US)
Pages (from-to)37-45
Number of pages9
JournalSurface Science
Volume181
Issue number1-2
DOIs
StatePublished - Mar 1 1987

Fingerprint

Superconducting materials
Energy gap
Spectroscopy
Vacuum
Thin films
vacuum
Polycrystals
polycrystals
thin films
spectroscopy
arcs
Metals
metals

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Vacuum tunneling spectroscopy of thin film and bulk polycrystalline superconductors. / Ng, K. W.; Khim, Z. G.; Shum, Danny P.; Wolf, E. L.

In: Surface Science, Vol. 181, No. 1-2, 01.03.1987, p. 37-45.

Research output: Contribution to journalArticle

Ng, K. W. ; Khim, Z. G. ; Shum, Danny P. ; Wolf, E. L. / Vacuum tunneling spectroscopy of thin film and bulk polycrystalline superconductors. In: Surface Science. 1987 ; Vol. 181, No. 1-2. pp. 37-45.
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