DC Field | Value | Language |
---|---|---|
dc.contributor.author | Uhm, SH | - |
dc.contributor.author | Yeom, HW | - |
dc.date.accessioned | 2015-06-25T03:09:27Z | - |
dc.date.available | 2015-06-25T03:09:27Z | - |
dc.date.created | 2013-10-29 | - |
dc.date.issued | 2013-10-21 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.other | 2015-OAK-0000028121 | en_US |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/12296 | - |
dc.description.abstract | We investigate with low-energy-electron diffraction (LEED) and angle-resolved photoelectron spectroscopy (ARPES) the effect of oxygen adsorbates on the phase transition of the Si(111)4 x 1-In surface. On this surface, oxygen was reported to increase the transition temperature (T-c) into the distorted 8 x 2 phase. We observed that while the T-c into the 8 x 2 phase increases up to 180 K, the substantial disorder is also induced on the surface. ARPES study reveals that the oxygen-induced 8 x 2 phase has the same insulating band structure with that on the pristine surface at a lower temperature. This indicates clearly that the oxygen-induced 4 x 1-8 x 2 transition is a consistent metal-insulator transition with that on the pristine surface. On the other hand, oxygen adsorbates slightly increase the band filling of the one-dimensional metallic bands of the 4 x 1-In surface. This contrasts with the expectation of the hole doping and the increased T-c, thus cannot be explained by the doping effect of adsorbates. A further study of the oxygen-induced 8 x 2 phase is requested to understand the microscopic mechanism of the adsorbate-induced elevation of the metal-insulator T-c. | - |
dc.description.statementofresponsibility | open | en_US |
dc.language | English | - |
dc.publisher | American Physical Society | - |
dc.relation.isPartOf | PHYSICAL REVIEW B | - |
dc.rights | BY_NC_ND | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/2.0/kr | en_US |
dc.title | Metal - insulator transition on the Si(111)4 X 1-In surface with oxygen impurity | - |
dc.type | Article | - |
dc.contributor.college | 물리학과 | en_US |
dc.identifier.doi | 10.1103/PHYSREVB.88.165419 | - |
dc.author.google | Uhm, SH | en_US |
dc.author.google | Yeom, HW | en_US |
dc.relation.volume | 88 | en_US |
dc.relation.issue | 16 | en_US |
dc.contributor.id | 10080808 | en_US |
dc.relation.journal | PHYSICAL REVIEW B | 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 | PHYSICAL REVIEW B, v.88, no.16 | - |
dc.identifier.wosid | 000326087800012 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.number | 16 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 88 | - |
dc.identifier.scopusid | 2-s2.0-84887059662 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 8 | - |
dc.description.scptc | 7 | * |
dc.date.scptcdate | 2018-10-274 | * |
dc.type.docType | Article | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
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