Magnetic susceptibility of AnRe/sub 2/ compounds
Journal Article
·
· J. Appl. Phys.; (United States)
The compounds AnRe/sub 2/, where An=Th, U, Np, and Pu all have the MgZn/sub 2/-type hexagonal Laves phase structure. Measurements of their magnetic susceptibilities have been made from 2 to 300 K. Whereas ThRe/sub 2/, URe/sub 2/, and PuRe/sub 2/ have essentially temperature-independent susceptibilities, NpRe/sub 2/ is ferromagnetic with T/sub c/=47 K. The paramagnetic data for NpRe/sub 2/ follow a modified Curie-Weiss law, chi-chi/sub 0/=C/(T-theta) from 60 to 230 K with theta=47.4 K and C equivalent to an effective moment, p/sub eff/=2.11..mu../sub B/. The ordered moment ..mu../sub 0/=0.90..mu../sub B/ and the results are consistent with other actinide compounds having good local moment behavior. The electronic specific heat ..gamma.. of URe/sub 2/=34 mJ/(mole K/sup 2/) is large enough to indicate the possibility of spin-fluctuation behavior in this compound.
- Research Organization:
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439
- OSTI ID:
- 5122982
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 49:3; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOY SYSTEMS
ALLOYS
BINARY ALLOY SYSTEMS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRONIC SPECIFIC HEAT
FERROMAGNETISM
HEXAGONAL LATTICES
INTERMETALLIC COMPOUNDS
LAVES PHASES
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NEPTUNIUM ALLOYS
PARAMAGNETISM
PHYSICAL PROPERTIES
PLUTONIUM ALLOYS
RHENIUM ALLOYS
RHENIUM BASE ALLOYS
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
THORIUM ALLOYS
URANIUM ALLOYS
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOY SYSTEMS
ALLOYS
BINARY ALLOY SYSTEMS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRONIC SPECIFIC HEAT
FERROMAGNETISM
HEXAGONAL LATTICES
INTERMETALLIC COMPOUNDS
LAVES PHASES
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MAGNETISM
NEPTUNIUM ALLOYS
PARAMAGNETISM
PHYSICAL PROPERTIES
PLUTONIUM ALLOYS
RHENIUM ALLOYS
RHENIUM BASE ALLOYS
SPECIFIC HEAT
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
THORIUM ALLOYS
URANIUM ALLOYS