Crystal Structure and Magnetic Properties of LaCo<INF>13x</INF>Al<INF>x</INF> Compounds

Authors :: Guo, Yongquan
Liang, Jingkui
Liang, Jingkui
Zhang, Xinhui
Zhao, Yanming
Tang, Weihua
Rao, Guanghui
Source :: Physica Status Solidi (A) - Applications and Materials Science; February 1997, Vol. 159 Issue: 2 p297-304, 8p
Publication Year :: 1997
Abstract: The crystal structure and magnetic properties of LaCoIii 13xAl<INF>x</INF> compounds have been investigated by X-ray powder diffraction and magnetization measurement. X-ray powder diffraction shows that the compounds crystallize in cubic NaZn<INF>13</INF>-type structure with lattice parameter a = 11.345(2) to 11.473(4) Å in the range of x ≤ 2.7, and in the tetragonal Ce<INF>2</INF>Ni<INF>17</INF>Si<INF>9</INF> structure at x = 3. Magnetization measurements reveal that both cubic and tetragonal LaCo<INF>13x</INF>Al<INF>x</INF> are ferromagnetic with Curie temperature higher than 840 K, and the magnetic moment per Co atom in LaCo<INF>13x</INF>Al<INF>x</INF> compounds decreases with Al content.

Language :: English
ISSN :: 18626300 and 18626319
Volume :: 159
Issue :: 2
Database :: Supplemental Index
Journal :: Physica Status Solidi (A) - Applications and Materials Science
Publication Type :: Periodical
Accession number :: ejs1853483
Full Text :: https://doi.org/10.1002/1521-396X(199702)159:2<297::AID-PSSA297>3.0.CO;2-4

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