Magnetic phases of Eu/sub /ital x//Sr/sub 1/minus//ital x//As/sub 3/ investigated by specific-heat, susceptibility, and elastic neutron-scattering measurements
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
We report on measurements of the specific heat /ital C/, the magnetic susceptibility xi, and elastic neutron scattering on single-crystalline monoclinic Eu/sub /ital x//Sr/sub 1/minus//ital x//As/sub 3/. The two successive phase transitions into incommensurate (IC) and antiferromagnetic (AF1) order with decreasing temperature /ital T/, observed previously for EuAs/sub 3/, persist upon dilution with Sr down to /ital x//similar to/0.5. For a sample with /ital x/=0.47, the IC order dominates over the AF1 order and only (long-range) IC order is found. At still lower concentrations long-range magnetic order vanishes and the system shows anisotropic spin-glass behavior. With measurements of the specific heat and of the magnetocaloric effect in magnetic fields up to /ital B/=6 T, we establish the (/ital B/-/ital T/) phase diagram for /ital x/=0.6 and compare the field-induced phases with those of pure EuAs/sub 3/.
- Research Organization:
- Physikalisches Institut, Universitat Karlsruhe, D-7500 Karlsruhe, Federal Republic of Germany(DE); Max-Planck-Institut fur Festkorperforschung, D-7000 Stuttgart, Federal Republic of Germany; Rutherford-Appleton Laboratory, Chilton, Didcot, Oxon OX110QX, England
- OSTI ID:
- 6194722
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:16; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETISM
ARSENIC COMPOUNDS
ARSENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
EUROPIUM ARSENIDES
EUROPIUM COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MONOCLINIC LATTICES
MONOCRYSTALS
NEUTRON DIFFRACTION
PHASE STUDIES
PHYSICAL PROPERTIES
PNICTIDES
RARE EARTH COMPOUNDS
SCATTERING
SPECIFIC HEAT
STRONTIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
ULTRALOW TEMPERATURE
360104* -- Metals & Alloys-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANTIFERROMAGNETISM
ARSENIC COMPOUNDS
ARSENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DIFFRACTION
EUROPIUM ARSENIDES
EUROPIUM COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
MONOCLINIC LATTICES
MONOCRYSTALS
NEUTRON DIFFRACTION
PHASE STUDIES
PHYSICAL PROPERTIES
PNICTIDES
RARE EARTH COMPOUNDS
SCATTERING
SPECIFIC HEAT
STRONTIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
ULTRALOW TEMPERATURE