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dc.contributor.authorHuang, Wen-Minen_US
dc.contributor.authorLai, Hsin-Huaen_US
dc.contributor.authorChang, Cheng-Hungen_US
dc.contributor.authorLin, Hsiu-Hauen_US
dc.date.accessioned2014-12-08T15:12:41Z-
dc.date.available2014-12-08T15:12:41Z-
dc.date.issued2008-01-20en_US
dc.identifier.issn0217-9792en_US
dc.identifier.urihttp://hdl.handle.net/11536/9759-
dc.description.abstractWe investigate the carrier-mediated exchange coupling between two ferromagnets, sandwiching an intermediate thin layer with Rashba interaction. The effective exchange coupling is obtained by integrating out the itinerant carriers. It turns out that the magnetic trends depend sensitively upon the topology of the Fermi surface. As the topology changes from "wedding cake" to "donut", the mediated exchange goes from the oscillatory Ruderman-Kittel-Kasuya-Yosida to the non-collinear spiral interactions accordingly. It is rather surprising that the Fermi surface topology determines which type of magnetic interaction becomes dominant. Finally, we also discuss potential applications for carrier-mediated exchange coupling across the junction.en_US
dc.language.isoen_USen_US
dc.subjectspintronicsen_US
dc.subjectmagnetic junctionen_US
dc.subjectRashba interactionen_US
dc.titleCarrier-mediated exchange coupling and fermi surface topologyen_US
dc.typeArticleen_US
dc.identifier.journalINTERNATIONAL JOURNAL OF MODERN PHYSICS Ben_US
dc.citation.volume22en_US
dc.citation.issue1-2en_US
dc.citation.spage88en_US
dc.citation.epage93en_US
dc.contributor.department物理研究所zh_TW
dc.contributor.departmentInstitute of Physicsen_US
dc.identifier.wosnumberWOS:000252848700011-
dc.citation.woscount1-
Appears in Collections:Articles