Magnetic properties of semimagnetic semiconductors materials

International Journal of Physical Sciences

R. Masrour¹ 

关键词: Semimagnetic semiconductor;    critical temperature;    critical exponents;    high-temperature series expansions;    Padé;    approximants;    phase diagram.;   

DOI  :  10.5897/IJPS10.343

学科分类：物理（综合）

来源: Academic Journals

【 摘 要 】

The magnetic properties of semimagnetic semiconductor(A’= Mn, A = Cd, Zn) are studied. By using the mean field theory in ordered phase and a probability distribution in disordered phase, we have evaluated the nearest neighbouring and the next-neighbouring super-exchange interactionsJ1(x) andJ2(x)forand. The magnetic phase diagram, that is,versus dilutionx, is obtained by the high-temperature series expansions combined with the Padé approximants for theandsystems. A spin glass state has been obtained for. This phase is attributed to the randomness and the frustration of the antiferromagnetic interactions between themagnetic ions arising from the topology of the diluted magnetic semiconductor alloys.

【 授权许可】

CC BY