Model spectral function for MgB2 superconductor

Authors
Islam, AKMA Islam, FN Islam, MN
Citation
Akma. Islam et al., Model spectral function for MgB2 superconductor, PHYS LETT A, 286(5), 2001, pp. 357-361
Citations number
37
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601 → ACNP
Volume
286
Issue
5
Year of publication
2001
Pages
357 - 361
Database
ISI
SICI code
0375-9601(20010806)286:5<357:MSFFMS>2.0.ZU;2-N
Abstract
The Eliashberg spectral density function is constructed for the newly disco vered MgB2. The model function shows spreading spectra that are nearly simi lar to those from first principles calculation. It provides a good descript ion of the physical properties of MgB2. The results of the analysis are con sistent with a phonon-mediated superconductivity, with a rather strong coup ling (lambda = 0.9). (C) 2001 Published by Elsevier Science B.V.