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Monte Carlo Simulations of Doped, Diluted Magnetic Semiconductors - a System with Two Length Scales

R. N. Bhatt·Xin Wan
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Abstract

We describe a Monte Carlo simulation study of the magnetic phase diagram of diluted magnetic semiconductors doped with shallow impurities in the low concentration regime. We show that because of a wide distribution of interaction strengths, the system exhibits strong quantum effects in the magnetically ordered phase. A discrete spin model, found to closely approximate the quantum system, shows long relaxation times, and the need for specialized cluster algorithms for updating spin configurations. Results for a representative system are presented.

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R. N. Bhatt, Xin Wan. 1999-12-21. Monte Carlo Simulations of Doped, Diluted Magnetic Semiconductors - a System with Two Length Scales. https://doi.org/10.1142/s0129183199001248

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