Magnetic properties of R<sub>3</sub>(Fe,Ti)<sub>29</sub>C<sub>y</sub> carbides (R=Nd, Sm)
Bo-Ping Hu; Gui-Chuan Liu; Yi-Zhong Wang; B Nasunjilegal; Ning Tang; Fu-Ming Yang; Hong-Shuo Li; J M Cadogan; Bo-Ping Hu; San Huan Res. Lab., Acad. Sinica, Beijing, China; Gui-Chuan Liu; San Huan Res. Lab., Acad. Sinica, Beijing, China; Yi-Zhong Wang; San Huan Res. Lab., Acad. Sinica, Beijing, China; B Nasunjilegal; San Huan Res. Lab., Acad. Sinica, Beijing, China; Ning Tang; San Huan Res. Lab., Acad. Sinica, Beijing, China; Fu-Ming Yang; San Huan Res. Lab., Acad. Sinica, Beijing, China; Hong-Shuo Li; San Huan Res. Lab., Acad. Sinica, Beijing, China; J M Cadogan; San Huan Res. Lab., Acad. Sinica, Beijing, China
Журнал:
Journal of Physics: Condensed Matter
Дата:
1994-09-26
Аннотация:
R<sub>3</sub>(Fe, Ti)<sub>29</sub>C<sub>y</sub> carbides (R=Nd, Sm) have been synthesized by gas-solid phase reaction. The Curie temperature is enhanced by carbonation, with values of 651 K and 641 K for Nd and Sm carbides respectively. The saturation magnetization of the carbides is slightly lower than that of their parent alloys. The Sm carbide has a large uniaxial anisotropy field, 21 T at 4.2 K and 14 T at 293 K. A coercivity of mu <sub>0i</sub>H<sub>c</sub>=0.3 T at room temperature in the Sm carbide has been developed.
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