Superconducting critical field of Nb3Ge1-xSnx pseudobinaries

Samuel A. Alterovitz, Edward J. Haugland, John A Woollam, John J. Engelhardt, George W. Webb

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Upper critical fields, Hc2(T), and residual resistivities, 0, of Nb3Ge1-xSnx pseudobinaries with 0<~x<~1 produced by chemical vapor deposition were measured in fields up to 140 kG. The upper critical field Hc2(0) exhibits a minimum at x0.4. The temperature dependence of Hc2 for all ternary concentrations follows the theory of dirty type-II superconductors. The coefficient of the electronic specific heat, the band density of states Nb(0), and the electron-phonon coupling parameter are determined as a function of x and 0. Estimated electron-phonon coupling parameters suggest a high Fermi-surface average of McMillan's parameter I2 for Nb3Ge.

Original languageEnglish (US)
Pages (from-to)4485-4492
Number of pages8
JournalPhysical Review B
Volume23
Issue number9
DOIs
StatePublished - Jan 1 1981

Fingerprint

Fermi surface
Electrons
Superconducting materials
Specific heat
Chemical vapor deposition
Fermi surfaces
electrons
specific heat
vapor deposition
temperature dependence
electrical resistivity
coefficients
electronics
Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Alterovitz, S. A., Haugland, E. J., Woollam, J. A., Engelhardt, J. J., & Webb, G. W. (1981). Superconducting critical field of Nb3Ge1-xSnx pseudobinaries. Physical Review B, 23(9), 4485-4492. https://doi.org/10.1103/PhysRevB.23.4485

Superconducting critical field of Nb3Ge1-xSnx pseudobinaries. / Alterovitz, Samuel A.; Haugland, Edward J.; Woollam, John A; Engelhardt, John J.; Webb, George W.

In: Physical Review B, Vol. 23, No. 9, 01.01.1981, p. 4485-4492.

Research output: Contribution to journalArticle

Alterovitz, SA, Haugland, EJ, Woollam, JA, Engelhardt, JJ & Webb, GW 1981, 'Superconducting critical field of Nb3Ge1-xSnx pseudobinaries', Physical Review B, vol. 23, no. 9, pp. 4485-4492. https://doi.org/10.1103/PhysRevB.23.4485
Alterovitz, Samuel A. ; Haugland, Edward J. ; Woollam, John A ; Engelhardt, John J. ; Webb, George W. / Superconducting critical field of Nb3Ge1-xSnx pseudobinaries. In: Physical Review B. 1981 ; Vol. 23, No. 9. pp. 4485-4492.
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