Magnetic properties of the reentrant ferromagnetic superconductor HoMo/sub 6/S/sub 8/

Journal Article · Thu Oct 01 04:00:00 EDT 1981 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.24.3817· OSTI ID:6124882

Lynn, J W; Shirane, G; Thomlinson, W; Shelton, R N; Moncton, D E

Neutron diffraction and ac susceptibility techniques have been used to study the magnetic and superconducting phase transitions in the ternary Chevrel phase system HoMo/sub 6/S/sub 8/. The material first becomes superconducting at T/sub c/1 = 1.82 K. With further decrease of temperature ferromagnetic correlations develop, with a correlation range in real space which increases with decreasing temperature. On further cooling, a long-wavelength (approx.230 A) oscillatory magnetic state forms (T/sub os/ = 0.71 K) in the superconducting phase, with a wavelength which increases with the application of a magnetic field. At still lower temperatures the superconductivity is destroyed (T/sub c/2/sup( C/) = 0.612 K) as long-range ferromagnetic order sets in. The ferromagnetic phase at low temperatures is characterized by a saturated magnetic moment ..mu../sub z/ = 9.06 +- 0.3 ..mu../sub B/, with the spins directed along the unique (111) trigonal axis. When the material is warmed from the ferromagnetic state, no oscillatory magnetic phase appears to form, with the system passing directly from ferromagnetism to superconductivity at T/sub c/2/sup( W/) = 0.668 K.

• Research Organization: Department of Physics and Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742
• OSTI ID: 6124882
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 24:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOY SYSTEMS
CHALCOGENIDES
COHERENT SCATTERING
CRYSTALS
DATA
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
FERROMAGNETISM
HOLMIUM COMPOUNDS
HOLMIUM SULFIDES
INFORMATION
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETISM
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NEUTRON DIFFRACTION
NUMERICAL DATA
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POLYCRYSTALS
RARE EARTH COMPOUNDS
SCATTERING
SULFIDES
SULFUR COMPOUNDS
SUPERCONDUCTIVITY
TERNARY ALLOY SYSTEMS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE