Superconductivity in crystals without symmetry centers

Journal Article · Wed Dec 01 04:00:00 EST 1976 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:7093747

Bulaevskii, L N; Guseinov, A A; Rusinov, A I

We consider the effect of spin-orbit interaction on the paramagnetic properties of superconducting crystals having a lattice without symmetry center. Systems of this type include superconducting metals with polar-symmetry lattice V/sub 2/Hf and VRu. Arguments are advanced favoring the assumption that there may be no symmetry center in a lattice of layered dichalcogenide metals with incommensurate charge-density wave or of intercalated layered metals. The paramagnetic susceptibility and the paramagnetic limit H/sub ps/ of the upper critical magnetic field are obtained for such superconductors as functions of the relative spin-orbit interaction ..cap alpha..=epsilon/sub 1//..delta.. (0), of the degree of purity of the crystals lambda=1/2tau..delta.. (0), of the temperature, and of the field direction. The quantities chi and H/sub ps/ are anisotropic, and H/sub ps/ can greatly exceed the Chandrasekhar-Clogston paramagnetic limit H/sub p/. The experimental data for H/sub c/ in 2H-NbSe/sub 2/ and TaS/sub 2/(Py)/sub 1/2/ are discussed from the point of view of the results.

• Research Organization: P. N. Lebedev Physics Institute, USSR Academy of Sciences
• OSTI ID: 7093747
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 71:6; ISSN SPHJA
• 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
COUPLING
CRITICAL FIELD
INTERMEDIATE COUPLING
L-S COUPLING
MAGNETIC FIELDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
PARAMAGNETISM
PHYSICAL PROPERTIES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE