In this study the author focuses on thermal and magnetic properties of diluted magnetic semiconductors at critical point. Such properties are discontinuous at some point in the critical region so that it is very important to study their critical behavior in these regions. In orde...
Open access
Research Article10.9734/PSIJ/2016/28109
In this paper the author addresses the nature of upper critical field of magnesium dioxide (MgB2) using Ginzberg- Landau (GL) approach. Nowadays, Superconducting materials show promising progress for the technological applications. According to this and previous studies, magnesi...
Open access
Research Article10.9734/BJAST/2016/26148
In this study long range interaction coupling Ising spin-glass systems with () are considered. Monte Carlo approach of the critical behavior is presented and also in presence of diverging thermodynamical fluctuations at the critical point the behavior of the model is shown to be...
Open access
Research Article10.9734/PSIJ/2015/16087
In the present paper, existence of spin glass state using Ising spin model with Edwards-Anderson type of interactions has been investigated by employing numerical simulation (Monte Carlo) technique. The study shows a phase transition from paramagnetic state to spin glass state wh...
Open access
Research Article10.9734/PSIJ/2014/9933
Aims: In the present work we explore magnetic properties especially spin glass, antiferromagnetic and paramagnetic states of diluted magnetic semiconductors (A1-xMnxA' (A = Zn, Cd and A' = S, Te, Se)). Place: Department of physics, College of natural sciences, Addis Ababa Univers...