Electroresistivity and magnetic phase transitions in Zn/sub 1-x/Mn/sub 2+x/As/sub 2

Autor: H. Hennion, S. Radautsan, A. Nateprov, I. Mirebeau, I. Tomak, L. Konopko
Rok vydání: 2002
Předmět:
Zdroj: 1995 International Semiconductor Conference. CAS '95 Proceedings.
DOI: 10.1109/smicnd.1995.495050
Popis: In this paper the results of the electroresistivity measurements of ZnMn/sub 2/As/sub 2/ are presented. The temperature dependence /spl rho/(T) reveals some anomalies in the region of the magnetic phase transitions. The calculated derivative d/spl rho//dT shows /spl lambda/-anomalies in the same temperature intervals. The derivative form near the critical points is in a good agreement with the theoretically predicted one. All these facts prove the relationship between the observed anomalies in /spl rho/(T) and the magnetic phase transitions.
Databáze: OpenAIRE