| Autor: |
P. Grima, Manuel Morocoima, José A. Henao, L. Lara, F. Pineda, M. Quintero, Rafael Tovar, Mario A. Macías, E. Quintero, E. Moreno, P. Bocaranda |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
Journal of Physics and Chemistry of Solids. 71:993-998 |
| ISSN: |
0022-3697 |
| DOI: |
10.1016/j.jpcs.2010.04.010 |
| Popis: |
Magnetic susceptibility χ measurements in the range from 2 to 300 K were carried out on samples of the Cu 2 FeSnSe 4 and Cu 2 MnSnSe 4 compounds. It was found that Cu 2 FeSnSe 4 was antiferromagnetic showing ideal Curie–Weiss behavior with a Neel temperature T N of about 19 K and Curie–Weiss temperature θ =−200 K, while for Cu 2 MnSnSe 4 the behavior was spin-glass with a freezing temperature T f of about 22 K and Curie–Weiss temperature θ =−25 K. The spin-glass order parameter q ( T ), determined from the susceptibility data, was found to be in agreement with the prediction of conventional spin-glass theory. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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