Structure and uniaxial magnetocrystalline anisotropy of intermetallic compounds La{sub 2}Co{sub 17{minus}x}Ti{sub x}
- Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, Peoples Republic of (China)
The crystal structure and magnetic properties of intermetallic compounds La{sub 2}Co{sub 17{minus}x}Ti{sub x} (0.8{le}x{le}1.2) have been investigated by x-ray powder diffraction and magnetic measurement. The lattice parameters of La{sub 2}Co{sub 17{minus}x}Ti{sub x} with the rhombohedral Th{sub 2}Zn{sub 17}-type structure are a=8.518{endash}8.531{Angstrom}, c=12.344{endash}12.379{Angstrom}. Ti atoms show a strong preference for occupying 6c crystallographic positions. The La{sub 2}Co{sub 17{minus}x}Ti{sub x} compounds are ferromagnetic. The Curie temperature decreases from 972 to 872 K, and the saturation magnetic moment decreases from 23.2 to 21.3{mu}{sub B}/f.u. with x=0.8{endash}1.2. The La{sub 2}Co{sub 16}Ti compound exhibits favorable uniaxial anisotropy, and the easy magnetization direction is parallel to the c axis. The anisotropy field is 23 kOe at 1.5 K for this compound. {copyright} {ital 1997 American Institute of Physics.}
- OSTI ID:
- 542531
- Journal Information:
- Applied Physics Letters, Vol. 71, Issue 13; Other Information: PBD: Sep 1997
- Country of Publication:
- United States
- Language:
- English
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