Crystal structure and magnetic properties of LaCo13−xSix compounds
Rao, G. H. ; Liang, J. K. ; Zhang, Y. L. ; Cheng, X. R. ; Tang, W. H.
Woodbury, NY : American Institute of Physics (AIP)
Published 1994
Woodbury, NY : American Institute of Physics (AIP)
Published 1994
| ISSN: |
1077-3118
|
|---|---|
| Source: |
AIP Digital Archive
|
| Topics: |
Physics
|
| Notes: |
Tetragonal LaCo13−xSix compounds have been obtained by annealing cubic LaCo13−xSix compounds. The space group for the tetragonal structure is I4/mcm. Atomic ordering occurs in the tetragonal LaCo13−xSix compounds, i.e., Si atoms show a strong preference for occupying a specific crystallographic position. The tetragonal LaCo13−xSix compounds are ferromagnetic with Curie temperatures higher than 900 K. The magnetic moment per Co atom in the tetragonal LaCo13−xSix compounds decreases with Si content, which can be explained by the rigid-band model. The tetragonal LaCo13−xSix compounds are expected to be promising candidates for permanent magnets purpose.
|
| Type of Medium: |
Electronic Resource
|
| URL: |