Landau intermediate state structure in Type I superconductors

Journal Article · Sun Jan 01 04:00:00 EST 1984 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00681477· OSTI ID:6580091

Miyazaki, T; Rinderer, L

Landau laminar structures are discussed for cases where the normal-superconducting (N-S) boundary is curved and where it is straight throughout a sample. A numerical calculation shows that the free energy for a curves N-S boundary is less than that for a straight one, except for values of d/..delta.. less than about 8 and a small region of magnetic fields close to h/sub perpendicular/. Here ..delta.. is the surface energy parameter and h/sub perpendicular/ is the perpendicular critical field corresponding to a sample thickness d. The expression for h/sub perpendicular/ for the straight N-S boundary is different from that obtained by Simonin and Lopez. It is shown that the data of h/sub perpendicular/ reported to date are insufficient to verify the formation of laminar structures with a straight N-S boundary.

• Research Organization: Institut de Physique Experimentale, Universite de Lausanne, Lausanne-Dorigny, Switzerland
• OSTI ID: 6580091
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 54:1; ISSN JLTPA
• 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
CRITICAL FIELD
ENERGY
FREE ENERGY
INTERMEDIATE STATE
LANDAU DOMAIN STRUCTURE
MAGNETIC FIELDS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
SURFACE ENERGY
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
TYPE-I SUPERCONDUCTORS