Theory of the upper critical field in antiferromagnetic superconductors

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00115071· OSTI ID:6022973

Mahanti, S D; Sinha, K P; Atre, M V

A generalized Ginzburg-Landau approach is used to study the nonmonotonic temperature dependence of the upper critical field H/sub c2/(T) in antiferromagnetic superconductors RE(Mo)/sub 6/S/sub 8/; RE = Dy, Tb, Gd. It is found that electrodynamic effects incorporated through screening and indirect coupling between the staggered magnetization M/sub Q/(T) and superconducting order parameter psi cannot explain the observed nonmonotonicity. This suggests that the direct coupling between the two order parameters should be considered to understand the experimental results, a finding which is consistent with recent microscopic calculations.

• Research Organization: Physics Department, Michigan State University, East Lansing, Michigan
• OSTI ID: 6022973
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 44:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
CHALCOGENIDES
CRITICAL FIELD
DYSPROSIUM COMPOUNDS
DYSPROSIUM SULFIDES
GADOLINIUM COMPOUNDS
GADOLINIUM SELENIDES
GADOLINIUM SULFIDES
GINZBURG-LANDAU THEORY
MAGNETIC FIELDS
MAGNETISM
MOLYBDENUM COMPOUNDS
ORDER PARAMETERS
RARE EARTH COMPOUNDS
SELENIDES
SELENIUM COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TERBIUM COMPOUNDS
TERBIUM SULFIDES
TRANSITION ELEMENT COMPOUNDS