Physical Science International Journal

The Study of Magnetic Properties of A1-xMnxA' (A = Zn, Cd and A' = S, Te, Se) at Critical Region Using High Temperature Series Expansion Extrapolated with PADÉ Approximants

Habte Dulla Berry *

Physics Department, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia

Pooran Singh

Physics Department, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia

*Author to whom correspondence should be addressed.

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Abstract

Aims: In the present work we explore magnetic properties especially spin glass, antiferromagnetic and paramagnetic states of diluted magnetic semiconductors (A_1-xMn_xA' (A = Zn, Cd and A' = S, Te, Se)).
Place: Department of physics, College of natural sciences, Addis Ababa University, between Sept. 2012, and May 2013. 
Methodology: Using classical Heisenberg model with high temperature series expansion extrapolated with pade Ì approximants.
Results: Different magnetic phases using different concentration regions
Conclusion: We used high temperature series expansion extrapolated with pade Ì approximants to determine the critical temperature (T_c), exchange interaction couplings, critical exponents of magnetic susceptibility and correlation function.

Keywords: Diluted magnetic semiconductors (DMSs), Heisenberg model, High temperature series expansion (HTSE), PADe ́ approximants

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