DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, June-Young | ko |
dc.contributor.author | Baek, Seung-heon Chris | ko |
dc.contributor.author | Park, Seung-Young | ko |
dc.contributor.author | Jo, Younghun | ko |
dc.contributor.author | Park, Byong-Guk | ko |
dc.date.accessioned | 2016-05-16T08:51:53Z | - |
dc.date.available | 2016-05-16T08:51:53Z | - |
dc.date.created | 2015-12-10 | - |
dc.date.created | 2015-12-10 | - |
dc.date.created | 2015-12-10 | - |
dc.date.issued | 2015-11 | - |
dc.identifier.citation | APPLIED PHYSICS LETTERS, v.107, no.18 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | http://hdl.handle.net/10203/207490 | - |
dc.description.abstract | We report a strong bias voltage dependence of magnetoresistance (MR) in CoFeB/MgO/Si spin-injection tunnel contacts using the three-terminal Hanle geometry. When a bias voltage is relatively large, the MR is composed of two characteristic signals: a conventional Hanle signal observed at a low magnetic field, which is due to the precession of injected spins, and another signal originating from the rotation of the magnetization at a larger magnetic field. In contrast, for a small bias voltage, additional signals appear at a wide range of magnetic fields, which occasionally overwhelms the conventional Hanle signals. Because the additional signals are pronounced at a low bias and are significantly reduced by annealing at moderate temperatures, they can be attributed to multi-step tunneling via defect states at the interfaces or tunnel barrier. Our results demonstrate that the spin injection signal caused by the defect states can be evaluated by its bias voltage dependence. | - |
dc.language | English | - |
dc.publisher | AMER INST PHYSICS | - |
dc.title | Abnormal bias dependence of magnetoresistance in CoFeB/MgO/Si spin-injection tunnel contacts | - |
dc.type | Article | - |
dc.identifier.wosid | 000364580800034 | - |
dc.identifier.scopusid | 2-s2.0-84946782575 | - |
dc.type.rims | ART | - |
dc.citation.volume | 107 | - |
dc.citation.issue | 18 | - |
dc.citation.publicationname | APPLIED PHYSICS LETTERS | - |
dc.identifier.doi | 10.1063/1.4935090 | - |
dc.contributor.localauthor | Park, Byong-Guk | - |
dc.contributor.nonIdAuthor | Park, Seung-Young | - |
dc.contributor.nonIdAuthor | Jo, Younghun | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | ELECTRICAL DETECTION | - |
dc.subject.keywordPlus | SEMICONDUCTOR | - |
dc.subject.keywordPlus | SILICON | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | BARRIER | - |
dc.subject.keywordPlus | LOGIC | - |
dc.subject.keywordPlus | METAL | - |
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