DC Field | Value | Language |
---|---|---|
dc.contributor.author | Seo, JJ | - |
dc.contributor.author | Kim, BY | - |
dc.contributor.author | Kim, BS | - |
dc.contributor.author | Jeong, JK | - |
dc.contributor.author | Ok, JM | - |
dc.contributor.author | Kim, JS | - |
dc.contributor.author | Denlinger, JD | - |
dc.contributor.author | Mo, SK | - |
dc.contributor.author | Kim, C | - |
dc.contributor.author | Kim, YK | - |
dc.date.accessioned | 2017-07-19T13:58:52Z | - |
dc.date.available | 2017-07-19T13:58:52Z | - |
dc.date.created | 2017-03-09 | - |
dc.date.issued | 2016-04 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/37985 | - |
dc.description.abstract | A superconducting transition temperature (T-c) as high as 100 K was recently discovered in one monolayer FeSe grown on SrTiO3. The discovery ignited efforts to identify the mechanism for the markedly enhanced T-c from its bulk value of 8 K. There are two main views about the origin of the T-c enhancement: interfacial effects and/or excess electrons with strong electron correlation. Here, we report the observation of superconductivity below 20 K in surface electron-doped bulk FeSe. The doped surface layer possesses all the key spectroscopic aspects of the monolayer FeSe on SrTiO3. Without interfacial effects, the surface layer state has a moderate T-c of 20 K with a smaller gap opening of 4.2 meV. Our results show that excess electrons with strong correlation cannot induce the maximum T-c, which in turn reveals the need for interfacial effects to achieve the highest T-c in one monolayer FeSe on SrTiO3. | - |
dc.language | English | - |
dc.publisher | Nature Publishing Group | - |
dc.relation.isPartOf | Nature Communications | - |
dc.title | Superconductivity below 20 K in heavily electron-doped surface layer of FeSe bulk crystal | - |
dc.type | Article | - |
dc.identifier.doi | 10.1038/NCOMMS11116 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Nature Communications, v.7 | - |
dc.identifier.wosid | 000373820200001 | - |
dc.date.tcdate | 2019-02-01 | - |
dc.citation.title | Nature Communications | - |
dc.citation.volume | 7 | - |
dc.contributor.affiliatedAuthor | Kim, JS | - |
dc.identifier.scopusid | 2-s2.0-84963642779 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 16 | - |
dc.description.isOpenAccess | Y | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | HIGH-TEMPERATURE SUPERCONDUCTIVITY | - |
dc.subject.keywordPlus | SINGLE-LAYER | - |
dc.subject.keywordPlus | IRON PNICTIDES | - |
dc.subject.keywordPlus | INTERFACE | - |
dc.subject.keywordPlus | ORIGIN | - |
dc.subject.keywordPlus | INSULATOR | - |
dc.subject.keywordPlus | FILMS | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
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