Elementary pinning force of normal precipitates in a superconductor

Journal Article · Sat Jan 01 04:00:00 EST 1983 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.331698· OSTI ID:6520104

Matsushita, T

The elementary pinning force of a small normal precipitate is calculated by using the phenomenological Ginzburg--Landau equations. The resultant elementary pinning force is almost the same as or slightly larger than that of a void of the same size. This contradicts the theoretical result of Kramer and Freyhardt that the elementary pinning force of the normal precipitate smaller than the coherence length is significantly smaller than that of the void due to the proximity effect. It is pointed out that the normal precipitate was incorrectly regarded as an inherent weak superconductor in the theory of Kramer and Freyhardt. The present theoretical result is compared with the result of a previous experiment and satisfactory agreement is obtained.

• Research Organization: Department of Electronics, Faculty of Engineering, Kyushu University, Hakozaki 6-10-1, Higashi-ku, Fukuoka 812, Japan
• OSTI ID: 6520104
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 54:1; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COHERENCE LENGTH
DATA
DIMENSIONS
GINZBURG-LANDAU THEORY
INFORMATION
KRAMERS THEOREM
LENGTH
MAGNETIC FLUX
MATHEMATICAL MODELS
NUMERICAL DATA
ORIENTATION
PROXIMITY EFFECT
SIZE
SUPERCONDUCTORS
THEORETICAL DATA
VOIDS