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Magnetic properties for the Cu2MnSnSe4 and Cu2FeSnSe4 compounds |
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| Authors: | E. Quintero,E. Moreno,M. Morocoima,P. Grima,P. Bocaranda,M.A. Mací as |
| Affiliation: | a Centro de Estudios de Semiconductores, Departamento de Física, Facultad de Ciencias, Universidad de Los Andes, Mérida 5101, Venezuela b Grupo de Investigación en Química Estructural (GIQUE), Facultad de Ciencias, Escuela de Química, Universidad Industrial de Santander, Apartado aéreo 678, Bucaramanga, Colombia |
| Abstract: | Magnetic susceptibility χ measurements in the range from 2 to 300 K were carried out on samples of the Cu2FeSnSe4 and Cu2MnSnSe4 compounds. It was found that Cu2FeSnSe4 was antiferromagnetic showing ideal Curie-Weiss behavior with a Néel temperature TN of about 19 K and Curie-Weiss temperature θ=−200 K, while for Cu2MnSnSe4 the behavior was spin-glass with a freezing temperature Tf 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. |
| Keywords: | A. Inorganic compounds A. Semiconductors D. Magnetic properties |
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