Magnetostriction and anisotropy of twin-free single-crystals Tb{sub 0.5}Dy{sub 0.5}(Fe{sub 0.9}Mn{sub 0.1}){sub 2}
- State Key Laboratory for Magnetism, Institute of Physics, CAS, P.O. Box 603, Beijing 100080, Peoples Republic of (China)
A study of the effects of substituting a small amount of Mn for Fe in the Terfenol-D system is presented. The twin-free and {l_angle}111{r_angle}-oriented single-crystal rods of Tb{sub 0.5}Dy{sub 0.5}(Fe{sub 0.9}Mn{sub 0.1}){sub 2} were prepared by Czochralski method. The magnetization, lattice constant, Curie temperature, and magnetostriction were examined. From the experimental results, it is possible to determine the effect of Mn substitution on magnetic anisotropy and magnetostriction. Because of Mn substituting for Fe, magnetic moment values of Tb{sub 0.5}Dy{sub 0.5}(Fe{sub 0.9}Mn{sub 0.1}){sub 2} show two inflections and the easy magnetization directions also show changes from 1.5 to 300 K at an applied field of 1000 Oe. It strongly suggests that Mn substitution remarkably influences magnetocrystalline anisotropy of Tb{sub 0.5}Dy{sub 0.5}(Fe{sub 0.9}Mn{sub 0.1}){sub 2}. Its saturation magnetostrictions are 1.48{times}10{sup {minus}3} and 1.67{times}10{sup {minus}3}, maximum {ital d}{sub 33} values are 1 and 1.5 under compressive stress of 0 and 12 MPa, respectively. These magnetostrictive properties are clearly better than those measured from the {l_angle}112{r_angle}-oriented twinned samples. This is the first time that the experimental data measured from the single-crystalline samples on the magnetic properties of Tb{sub 0.5}Dy{sub 0.5}(Fe{sub 0.9}Mn{sub 0.1}){sub 2} are reported. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 280007
- 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
CURIE POINT
DYSPROSIUM COMPOUNDS
HIGH PRESSURE
IRON COMPOUNDS
LATTICE PARAMETERS
MAGNETIC ANISOTROPY
MAGNETIC MATERIALS
MAGNETIZATION
MANGANESE COMPOUNDS
MONOCRYSTALS
SUBSTITUTION
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TERBIUM COMPOUNDS
TWINNING