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 | |
| 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