Magnetic properties and magnetostriction of twin-free single-crystal Tb{sub 0.27}Dy{sub 0.73}(Fe{sub 1{minus}{ital x}}Al{sub {ital x}}){sub 2}
- State Key Laboratory for Magnetism, Institute of Physics, CAS, P. O. Box 603, Beijing 100080, Peoples Republic of (China)
Magnetization curves, Curie temperature, and lattice constants of twin-free [111]-oriented single-crystal Tb{sub 0.27}Dy{sub 0.73}(Fe{sub 1{minus}{ital x}}Al{sub {ital x}}){sub 2} ({ital x}=0, 0.1) were investigated. It was observed that with the substitution of Al for Fe, Curie temperature and magnetocrystalline anisotropy decrease, and lattice constants increase. It is shown from the curves of magnetic moment versus temperature that the anisotropy compensation temperature of Tb{sub 0.27}Dy{sub 0.73}(Fe{sub 0.9}Al{sub 0.1}){sub 2} is 280 K, which is higher than 260 K of Tb{sub 0.27}Dy{sub 0.73}Fe{sub 2}. Besides, the saturation magnetostriction {lambda}{sub 111} of Tb{sub 0.27}Dy{sub 0.73}(Fe{sub 0.9}Al{sub 0.1}){sub 2} was measured by using strain gauge method. The result indicates that {lambda}{sub 111} increases from 1.01{times}10{sup {minus}3} to 1.54{times}10{sup {minus}3} as the compressive stress is increased from 0 to 12 MPa, and that the maximal {ital D}{sub 33}({ital d}{lambda}/{ital dH}) is about 1.0. It is the first time to present the experimental data of the twin-free [111]-oriented single crystal of Tb{sub 0.27}Dy{sub 0.73}(Fe{sub 0.9}Al{sub 0.1}){sub 2}. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 280008
- Report Number(s):
- CONF-951101--
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 79; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM COMPOUNDS
CURIE POINT
DYSPROSIUM COMPOUNDS
HIGH PRESSURE
IRON COMPOUNDS
LATTICE PARAMETERS
MAGNETIC ANISOTROPY
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MONOCRYSTALS
PRESSURE DEPENDENCE
SUBSTITUTION
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TERBIUM COMPOUNDS
TWINNING