Ferromagnetism and canted spin phase inAlAs/Ga1−xMnxAssingle quantum wells: Monte Carlo simulation

Autor:	A. Ghazali, M. A. Boselli, I. C. da Cunha Lima
Rok vydání:	2000
Předmět:	Physics Condensed Matter::Materials Science Paramagnetism Condensed matter physics Magnetic moment Ferromagnetism Phase (matter) Monte Carlo method Condensed Matter::Strongly Correlated Electrons Spin (physics) Coupling (probability) Quantum well
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
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a14ea525a263865ff91a29e87724983a https://doi.org/10.1103/physrevb.62.8895 Zobrazit plný text záznamu