Published November 1980 | Version v1
Journal article Metadata-only

Superconducting Lasub(3-x)S4 compounds

Creators

  • 1. Bochum Univ. (Germany, F.R.). Inst. fuer Experimentalphysik

Description

Superconducting La3S4 single crystals containing a definite number of cation vacancies are analysed by magnetic susceptibility, specific heat, upper critical magnetic field and low-temperature x-ray diffraction measurements. Experimental proof is found that the cubic to tetragonal distortion of the unit cell found in crystals close to stoichiometric La3S4 is of Jahn-Teller band type. The strongest electron-phonon coupling and the maximum superconducting transition temperature is found when the cubic to tetragonal phase transformation is just suppressed by doping with vacancies. (author)

Additional details

Publishing Information

Journal Title
J. Phys., F (London). Met. Phys.
Journal Volume
10
Journal Issue
11
Series
J. Phys., F (London). Met. Phys.
Journal Page Range
2459-2469
ISSN
0305-4608

INIS

Country of Publication
United Kingdom
Country of Input or Organization
United Kingdom
INIS RN
12590435
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CATIONS; CHEMICAL COMPOSITION; COUPLING; CRITICAL FIELD; CUBIC LATTICES; JAHN-TELLER EFFECT; LANTHANUM SULFIDES; LOW TEMPERATURE; MAGNETIC SUSCEPTIBILITY; MONOCRYSTALS; PHASE TRANSFORMATIONS; SPECIFIC HEAT; SUPERCONDUCTORS; TETRAGONAL LATTICES; TRANSITION TEMPERATURE; VACANCIES; X-RAY DIFFRACTION
Descriptors DEC
CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; DIFFRACTION; IONS; LANTHANUM COMPOUNDS; MAGNETIC FIELDS; MAGNETIC PROPERTIES; PHYSICAL PROPERTIES; POINT DEFECTS; RARE EARTH COMPOUNDS; SCATTERING; SULFIDES; SULFUR COMPOUNDS; THERMODYNAMIC PROPERTIES