Theory of scattering in a superconducting state

Yoshimasa Murayama

Physica A: Statistical Mechanics and its Applications, 1980, vol. 102, issue 3, 447-469

Abstract: How ordinarily existing scatters determine electric resistivity in a superconducting state is calculated here in order to explain why the electric resistance vanishes suddenly at the critical temperature Tc of a superconductor. Three mechanisms are considered: (1) non-magnetic impurity scattering, (2) phonon scattering, and (3) magnetic (spin-flip) scattering. If one tentatively calculates conductivity as the response to an applied electric field and tries to solve a finite current response under a vanishing electric field inside a superconductor, then the solved conductivity should be infinite. It is possible to show that the calculated conductivity is infinite for the former two scattering mechanisms and finite for the last. The calculations are based on the Kubo formula and are carried out by using retarded Green's functions taking into account any scattering to the lowest order and a random phase approximation. The basis of this theory are the states defined by the Fermi-gas model with an attractive electron correlation as well as electron-scatterer interaction.

Date: 1980
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/037843719090176S
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:102:y:1980:i:3:p:447-469

DOI: 10.1016/0378-4371(90)90176-S

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().