DC Field | Value | Language |
---|---|---|
dc.contributor.author | Min, BI | - |
dc.contributor.author | Baik, SS | - |
dc.contributor.author | Choi, HC | - |
dc.contributor.author | Kwon, SK | - |
dc.contributor.author | Kang, JS | - |
dc.date.accessioned | 2015-06-25T02:52:51Z | - |
dc.date.available | 2015-06-25T02:52:51Z | - |
dc.date.created | 2010-04-30 | - |
dc.date.issued | 2008-05-23 | - |
dc.identifier.issn | 1367-2630 | - |
dc.identifier.other | 2015-OAK-0000007820 | en_US |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/11806 | - |
dc.description.abstract | Electronic structures of Cr-based chalcogenide magnetic semiconductors FeCr(2)Se(4) and Fe(0.5)Cu(0.5)Cr(2)Se(4) are investigated by using the full-potential augmented plane wave (FLAPW) band method in both the generalized gradient approximation (GGA) and the GGA+U (GGA incorporating the on-site Coulomb interaction). The GGA band calculation for the Jahn-Teller distorted FeCr(2)Se(4) with monoclinic structure yields an antiferromagnetic (AF) metallic electronic structure. The GGA+U band calculation yields an insulating electronic structure for AF FeCr(2)Se(4) in agreement with experiments. The orbital ordering in FeCr(2)Se(4) driven by the Jahn-Teller and on-site Coulomb interactions is demonstrated based on the GGA+U electronic structures. For ferrimagnetic Fe(0.5)Cu(0.5)Cr(2)Se(4) with a cubic spinel structure, the GGA and the GGA+U yield nearly insulating and insulating electronic structures, respectively. We have also studied the experimental electronic structure of FeCr(2)Se(4) by employing soft x-ray absorption spectroscopy, soft x-ray magnetic circular dichroism and valence-band photoemission spectroscopy. Both calculational and experimental electronic structure studies indicate that the valence states of Fe and Cr ions in FeCr(2)Se(4) are nearly divalent (Fe(2+)) and trivalent (Cr(3+)), respectively. | - |
dc.description.statementofresponsibility | open | en_US |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.relation.isPartOf | NEW JOURNAL OF PHYSICS | - |
dc.rights | BY_NC_ND | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.0/kr | en_US |
dc.title | Electronic structures of magnetic semiconductors FeCr2Se4 and Fe0.5Cu0.5Cr2Se4 | - |
dc.type | Article | - |
dc.contributor.college | 물리학과 | en_US |
dc.identifier.doi | 10.1088/1367-2630/10/5/055014 | - |
dc.author.google | Min, BI | en_US |
dc.author.google | Baik, SS | en_US |
dc.author.google | Kang, JS | en_US |
dc.author.google | Kwon, SK | en_US |
dc.author.google | Choi, HC | en_US |
dc.relation.volume | 10 | en_US |
dc.contributor.id | 10069852 | en_US |
dc.relation.journal | NEW JOURNAL OF PHYSICS | en_US |
dc.relation.index | SCI급, SCOPUS 등재논문 | en_US |
dc.relation.sci | SCI | en_US |
dc.collections.name | Journal Papers | en_US |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | NEW JOURNAL OF PHYSICS, v.10 | - |
dc.identifier.wosid | 000256426800010 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.title | NEW JOURNAL OF PHYSICS | - |
dc.citation.volume | 10 | - |
dc.contributor.affiliatedAuthor | Min, BI | - |
dc.identifier.scopusid | 2-s2.0-46749118023 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 5 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | TRANSITION-METAL COMPOUNDS | - |
dc.subject.keywordPlus | X-RAY-ABSORPTION | - |
dc.subject.keywordPlus | CIRCULAR-DICHROISM | - |
dc.subject.keywordPlus | BULK SOLIDS | - |
dc.subject.keywordPlus | SPINEL | - |
dc.subject.keywordPlus | MAGNETORESISTANCE | - |
dc.subject.keywordPlus | FE1-XCUXCR2S4 | - |
dc.subject.keywordPlus | MOSSBAUER | - |
dc.subject.keywordPlus | FIELD | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
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