Monte Carlo simulations of ferromagnetism in p-CdMnTe quantum wells

Details Monte Carlo simulations of ferromagnetism in p-CdMnTe quantum wells Monte Carlo simulations of ferromagnetism in p-CdMnTe quantum wells

2004-07-14

arxiv.org/abs/cond-mat/0407356v2

Phys.Rev.Lett. 94(12) 127201 (2005)

Physics

Condensed Matter

Materials Science

4 pages, 4 figures, to be published in Physical Review Letters; replaced figure 4; revised text

Scientific paper

10.1103/PhysRevLett.94.127201

Monte Carlo simulations, in which the Schrodinger equation is solved at each Monte Carlo sweep, are employed to assess the influence of magnetization fluctuations,short-range antiferromagnetic interactions, disorder, magnetic polaron formation, and spin-Peierls instability on the carrier-mediated Ising ferromagnetism in two-dimensional electronic systems. The determined critical temperature and hysteresis are affected in a nontrivial way by the antiferromagnetic interactions. The findings explain striking experimental results for modulation-doped p-CdMnTe quantum wells.

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