Ferromagnetism and canted spin phase in AlAs/Ga1-xMnxAs single quantum wells: Monte Carlo simulation

Article

关键词: DILUTED MAGNETIC SEMICONDUCTOR;    TRANSPORT-PROPERTIES;    GA1-XMNXAS EPILAYERS;    ELECTRON-GAS;    EXCHANGE;    (GA;    SUPERLATTICES;    MULTILAYERS;    TRANSITION;    IMPURITIES;   

DOI  :  10.1103/PhysRevB.62.8895

来源: SCIE

【 摘 要 】

The magnetic order resulting from a confinement-adapted Ruderman-Kittel-Kasuya-Yosida indirect exchange between magnetic moments in the metallic phase of a AlAs/Ga1-xMnxAs quantum well is studied by Monte Carlo simulation. This coupling mechanism involves magnetic moments and carriers (holes), both coming from the same Mn2+ 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.

【 授权许可】

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