Ferromagnetism and canted spin phase inAlAs/Ga1−xMnxAssingle quantum wells: Monte Carlo simulation
Autor: | A. Ghazali, M. A. Boselli, I. C. da Cunha Lima |
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Rok vydání: | 2000 |
Předmět: | |
Zdroj: | Physical Review B. 62:8895-8902 |
ISSN: | 1095-3795 0163-1829 |
Popis: | The magnetic order resulting from a confinement-adapted Ruderman-Kittel-Kasuya-Yosida indirect exchange between magnetic moments in the metallic phase of a $\mathrm{AlAs}/{\mathrm{Ga}}_{1\ensuremath{-}x}{\mathrm{Mn}}_{x}\mathrm{As}$ quantum well is studied by Monte Carlo simulation. This coupling mechanism involves magnetic moments and carriers (holes), both coming from the same ${\mathrm{Mn}}^{2+}$ ions. It leads to a paramagnetic, a ferromagnetic, or a canted spin phase, depending on the carrier concentration, and on the magnetic layer width. It is shown that high transition temperatures may be obtained. |
Databáze: | OpenAIRE |
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