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-; ISSN 0021-8979; TRN: 9608M0059
- Journal Information:
- Journal of Applied Physics, Vol. 79, Issue 8; Conference: 40. conference on magnetism and magnetic materials, Philadelphia, PA (United States), 6-9 Nov 1995; Other Information: PBD: Apr 1996
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
TERBIUM COMPOUNDS
MAGNETIC PROPERTIES
DYSPROSIUM COMPOUNDS
IRON COMPOUNDS
ALUMINIUM COMPOUNDS
TWINNING
MONOCRYSTALS
MAGNETIC MATERIALS
LATTICE PARAMETERS
CURIE POINT
PRESSURE DEPENDENCE
HIGH PRESSURE
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
SUBSTITUTION
MAGNETIC ANISOTROPY