Strongly (001)-textured MgO/Co40Fe40B20 spin-tunnel contact on n-Ge(001) and its spin accumulation: Structural modification with ultrathin Mg insertion by sputtering

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dc.contributor.authorLee, Soogilko
dc.contributor.authorKim, Sanghoonko
dc.contributor.authorSon, Jangyupko
dc.contributor.authorBaek, Seung-heon Chrisko
dc.contributor.authorLee, Seok-Heeko
dc.contributor.authorHong, Jongillko
dc.date.accessioned2016-07-06T04:24:10Z-
dc.date.available2016-07-06T04:24:10Z-
dc.date.created2016-06-08-
dc.date.created2016-06-08-
dc.date.issued2016-04-
dc.identifier.citationAPPLIED PHYSICS EXPRESS, v.9, no.4-
dc.identifier.issn1882-0778-
dc.identifier.urihttp://hdl.handle.net/10203/209534-
dc.description.abstractThe sputter-deposited fcc-MgO (001)[100]/bcc-Co40Fe40B20 (001)[110] spin-tunnel contact (STC) was successfully prepared on n-Ge(001). We found that the interfacial modification by ultrathin (6 angstrom) Mg insertion at the interface between n-Ge and MgO plays an important role in spin injection into Ge. The significantly amplified spin accumulation was observed in this STC as a result of the structural modification. The three-terminal Hanle signal of this STC was 2.7 times larger than that of the STC without Mg insertion. Our study confirms that a sputtering technique is indeed practical and useful to modify interfacial structures for the efficient injection of spins into semiconductors. (C) 2016 The Japan Society of Applied Physic-
dc.languageEnglish-
dc.publisherIOP PUBLISHING LTD-
dc.subjectROOM-TEMPERATURE-
dc.subjectSURFACE-
dc.subjectGROWTH-
dc.subjectENERGY-
dc.titleStrongly (001)-textured MgO/Co40Fe40B20 spin-tunnel contact on n-Ge(001) and its spin accumulation: Structural modification with ultrathin Mg insertion by sputtering-
dc.typeArticle-
dc.identifier.wosid000375661600017-
dc.identifier.scopusid2-s2.0-84963492751-
dc.type.rimsART-
dc.citation.volume9-
dc.citation.issue4-
dc.citation.publicationnameAPPLIED PHYSICS EXPRESS-
dc.identifier.doi10.7567/APEX.9.043005-
dc.contributor.localauthorLee, Seok-Hee-
dc.contributor.nonIdAuthorLee, Soogil-
dc.contributor.nonIdAuthorKim, Sanghoon-
dc.contributor.nonIdAuthorSon, Jangyup-
dc.contributor.nonIdAuthorHong, Jongill-
dc.type.journalArticleArticle-
dc.subject.keywordPlusROOM-TEMPERATURE-
dc.subject.keywordPlusSURFACE-
dc.subject.keywordPlusGROWTH-
dc.subject.keywordPlusENERGY-
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