DC Field | Value | Language |
---|---|---|
dc.contributor.author | Song, Young-Sun | - |
dc.contributor.author | Jhi, Seung-Hoon | - |
dc.date.accessioned | 2021-12-03T09:44:20Z | - |
dc.date.available | 2021-12-03T09:44:20Z | - |
dc.date.created | 2020-04-20 | - |
dc.date.issued | 2020-04 | - |
dc.identifier.issn | 0953-8984 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/107911 | - |
dc.description.abstract | Ge-Sb-Te-based phase-change materials (PCMs) exhibit contrasting electrical and optical properties upon change in atomic structures, which contain the octahedral p -orbital bonding and also substantial disordered vacancies. While extensive studies have been carried out, there is little detailed analysis of how the vacancy distribution and bonding nature are inter-correlated to affect the physical properties. We studied the effect of vacancy distribution on the octahedral p -bonding network in PCMs using a simple tight-binding model and ab initio calculations. We showed that the octahedral p -bonding network can be described as a collection of independent linear chains and that the vacancy disorders are rephrased as a distribution of atomic chain pieces. This finding enables to link the vacancy distribution to various aspects of materials properties such as total energy, structural distortions, and charge localization. | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.relation.isPartOf | JOURNAL OF PHYSICS-CONDENSED MATTER | - |
dc.title | Effect of vacancy disorder in phase-change materials | - |
dc.type | Article | - |
dc.identifier.doi | 10.1088/1361-648X/ab680b | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICS-CONDENSED MATTER, v.32, no.17 | - |
dc.identifier.wosid | 000520167900001 | - |
dc.citation.number | 17 | - |
dc.citation.title | JOURNAL OF PHYSICS-CONDENSED MATTER | - |
dc.citation.volume | 32 | - |
dc.contributor.affiliatedAuthor | Song, Young-Sun | - |
dc.contributor.affiliatedAuthor | Jhi, Seung-Hoon | - |
dc.identifier.scopusid | 2-s2.0-85082136981 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | MEMORY | - |
dc.subject.keywordAuthor | phase-change materials | - |
dc.subject.keywordAuthor | vacancy disorder | - |
dc.subject.keywordAuthor | p -orbital bonding network | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
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