DC Field | Value | Language |
---|---|---|
dc.contributor.author | Seo, SY | - |
dc.contributor.author | Jeong, ES | - |
dc.contributor.author | Kwak, CH | - |
dc.contributor.author | Park, CI | - |
dc.contributor.author | Jin, Z | - |
dc.contributor.author | Kim, SH | - |
dc.contributor.author | Han, SW | - |
dc.date.accessioned | 2016-03-31T07:53:20Z | - |
dc.date.available | 2016-03-31T07:53:20Z | - |
dc.date.created | 2015-02-04 | - |
dc.date.issued | 2013-06-26 | - |
dc.identifier.issn | 0953-8984 | - |
dc.identifier.other | 2013-OAK-0000031061 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/14120 | - |
dc.description.abstract | We examined the distribution of Co ions in ferromagnetic n-type Zn1-xCoxO semiconducting films with Co concentrations of 0.0-0.07 using x-ray absorption fine structure (XAFS) measurements at the Co and Zn K edges. Extended XAFS (EXAFS) revealed that Co ions mainly occupied the zinc sites in the films. X-ray absorption near edge structure (XANES) spectra demonstrated that the pre-edge peak of the Co K edge was substantially affected by the second neighboring Co ions in the zinc sites due to their environmental potential distortion. From the pre-edge peak and EXAFS analysis using ab initio calculations, we found that Co ions uniformly occupied the zinc sites of the Zn0.93Co0.07O film, whereas the Co ions of the Zn0.97Co0.03O and Zn0.95Co0.05O films were substituted at the zinc sites with a non-uniform distribution. The ferromagnetic properties of the Zn0.93Co0.07O film may be induced by direct interaction between the magnetic dipoles of the Co ions with a mean distance of 4.3 angstrom, or by the Co conduction-electron mediation. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.relation.isPartOf | JOURNAL OF PHYSICS-CONDENSED MATTER | - |
dc.subject | CO-DOPED ZNO | - |
dc.subject | PRE-EDGE | - |
dc.subject | K-EDGE | - |
dc.subject | MAGNETIC-PROPERTIES | - |
dc.subject | ROOM-TEMPERATURE | - |
dc.subject | THIN-FILMS | - |
dc.subject | SEMICONDUCTORS | - |
dc.subject | SCATTERING | - |
dc.subject | COMPLEXES | - |
dc.subject | NANORODS | - |
dc.title | X-ray absorption fine structure study of cobalt ion distribution in ferromagnetic Zn1-xCoxO films | - |
dc.type | Article | - |
dc.contributor.college | 신소재공학과 | - |
dc.identifier.doi | 10.1088/0953-8984/25/25/256005 | - |
dc.author.google | Seo, SY | - |
dc.author.google | Jeong, ES | - |
dc.author.google | Kwak, CH | - |
dc.author.google | Park, CI | - |
dc.author.google | Jin, Z | - |
dc.author.google | Kim, SH | - |
dc.author.google | Han, SW | - |
dc.relation.volume | 25 | - |
dc.relation.issue | 25 | - |
dc.contributor.id | 10077433 | - |
dc.relation.journal | JOURNAL OF PHYSICS-CONDENSED MATTER | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICS-CONDENSED MATTER, v.25, no.25 | - |
dc.identifier.wosid | 000320110200011 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.number | 25 | - |
dc.citation.title | JOURNAL OF PHYSICS-CONDENSED MATTER | - |
dc.citation.volume | 25 | - |
dc.contributor.affiliatedAuthor | Kim, SH | - |
dc.identifier.scopusid | 2-s2.0-84879312690 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 9 | - |
dc.description.scptc | 10 | * |
dc.date.scptcdate | 2018-05-121 | * |
dc.type.docType | Article | - |
dc.subject.keywordPlus | CO-DOPED ZNO | - |
dc.subject.keywordPlus | PRE-EDGE | - |
dc.subject.keywordPlus | K-EDGE | - |
dc.subject.keywordPlus | MAGNETIC-PROPERTIES | - |
dc.subject.keywordPlus | ROOM-TEMPERATURE | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | SEMICONDUCTORS | - |
dc.subject.keywordPlus | SCATTERING | - |
dc.subject.keywordPlus | COMPLEXES | - |
dc.subject.keywordPlus | NANORODS | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.