Monte Carlo simulations of doped, diluted magnetic semiconductors - A system with two length scales

R. N. Bhatt; Xin Wan

doi:10.1142/S0129183199001248

Monte Carlo simulations of doped, diluted magnetic semiconductors - A system with two length scales

R. N. Bhatt, Xin Wan

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

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.

Original language	English (US)
Pages (from-to)	1459-1470
Number of pages	12
Journal	International Journal of Modern Physics C
Volume	10
Issue number	8
DOIs	https://doi.org/10.1142/S0129183199001248
State	Published - Dec 1999

All Science Journal Classification (ASJC) codes

Statistical and Nonlinear Physics
Mathematical Physics
General Physics and Astronomy
Computer Science Applications
Computational Theory and Mathematics

Keywords

Cluster Algorithm
Diluted Magnetic Semiconductors
Monte Carlo Simulation
Phase Transition
Shallow Impurity

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10.1142/S0129183199001248

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title = "Monte Carlo simulations of doped, diluted magnetic semiconductors - A system with two length scales",

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.",

keywords = "Cluster Algorithm, Diluted Magnetic Semiconductors, Monte Carlo Simulation, Phase Transition, Shallow Impurity",

author = "Bhatt, {R. N.} and Xin Wan",

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T1 - Monte Carlo simulations of doped, diluted magnetic semiconductors - A system with two length scales

AU - Bhatt, R. N.

AU - Wan, Xin

PY - 1999/12

Y1 - 1999/12

N2 - 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.

AB - 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.

KW - Cluster Algorithm

KW - Diluted Magnetic Semiconductors

KW - Monte Carlo Simulation

KW - Phase Transition

KW - Shallow Impurity

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JO - International Journal of Modern Physics C

JF - International Journal of Modern Physics C

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ER -

Monte Carlo simulations of doped, diluted magnetic semiconductors - A system with two length scales

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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