Accession Number : ADA189353

Title :   Superconductors with Structured Surfaces. Fields and Currents.

Descriptive Note : Technical rept.,

Corporate Author : STATE UNIV OF NEW YORK AT BUFFALO DEPT OF CHEMISTRY

Personal Author(s) : Wu, Z C ; Jelski, Daniel A ; George, Thomas F

PDF Url : ADA189353

Report Date : Dec 1987

Pagination or Media Count : 13

Abstract : This paper discusses the behavior of currents and fields along a structured superconductor. First the effect of surface structure on supercurrents is investigated. Then the effect of structure on the critical nucleation field is discussed in two cases, one with the magnetic field parallel to the ripples and the other with the field parallel to the grating wavenumber. In the first case, it is found that the critical field is reduced as a function of grating height, whereas in the latter case it is increased. Finally, the relevance of this work for laser-induced chemistry above a superconducting surface is discussed. The Ginzburg-Landau model is used throughout. Keywords: Superconductor; Structured surface; Supercurrent; External magnetic field; Critical nucleation field; Ginzburg landau theory.

Descriptors :   *MAGNETIC FIELDS, *SUPERCONDUCTORS, BEHAVIOR, CHEMISTRY, CURRENTS, EXTERNAL, GRATINGS(SPECTRA), HEIGHT, LASERS, NUCLEATION, RIPPLES, SURFACES

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE