Influence of temperature and magnetic field on ferrimagnetic CePtGe[sub 2]
- Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)
- Ames Laboratory and Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011 (United States)
- Ames Laboratory and Department of Physics, Iowa State University, Ames, Iowa 50011 (United States)
An external magnetic field causes a significant (more than twofold) increase of [gamma] deduced from high-temperature-range data (i.e., the paramagnetic state) showing no saturation even at 7.5 T, and a slight rise of the electronic specific-heat coefficient for the magnetically ordered state up to [similar to]125 mJ/mol K[sup 2] with saturation at this value in a much lower field (2.5 T). The entropy ([Delta][ital S]) associated with the ferrimagnetic phase transition is estimated to be 2.9 J/mol K, which is only 0.35[ital R] or 50% of the theoretically expected [ital R] ln2 value. The heat-capacity and resistivity measurements suggest that CePtGe[sub 2] is a moderately heavy-fermion system.
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 6740669
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 51:2; ISSN 0163-1829; ISSN PRBMDO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
CERIUM COMPOUNDS
CRYSTAL FIELD
CRYSTALS
FERRIMAGNETIC MATERIALS
GERMANIUM COMPOUNDS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MATERIALS
PHYSICAL PROPERTIES
PLATINUM COMPOUNDS
POLYCRYSTALS
RARE EARTH COMPOUNDS
SPECIFIC HEAT
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS