Superconducting properties of metallic glass Ca70Mg30 through Ashcroft's pseudopotential

Citation
M. Gupta et al., Superconducting properties of metallic glass Ca70Mg30 through Ashcroft's pseudopotential, PHYS ST S-B, 211(2), 1999, pp. 731-735
Citations number
31
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI B-BASIC RESEARCH
ISSN journal
03701972 → ACNP
Volume
211
Issue
2
Year of publication
1999
Pages
731 - 735
Database
ISI
SICI code
0370-1972(199902)211:2<731:SPOMGC>2.0.ZU;2-F
Abstract
The screened form factors obtained from the Ashcroft's empty core model pse udopotential for electron-ion interaction by employing Geldart and Vosko sc reening have been used for the prediction of the superconducting state prop erties viz. electron-phonon coupling strength lambda, Coulomb pseudopotenti al mu*, transition temperature T-c, isotope effect exponent alpha, and the interaction strength N0V of binary metallic glass Ca70Mg30. The results obt ained are in the expected range. The obtained T-c value of 17 K suggests su itability of this metallic glass for its use as lossless transmission line for cryogenic applications.