Tuning ferromagnetic BaFe2(PO4)(2) through a high Chern number topological phase
DC Field | Value | Language |
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dc.contributor.author | Song, Young-Joon | - |
dc.contributor.author | Ahn, Kyo-Hoon | - |
dc.contributor.author | Pickett, Warren E. | - |
dc.contributor.author | Lee, Kwan-Woo | - |
dc.date.accessioned | 2021-09-03T19:57:53Z | - |
dc.date.available | 2021-09-03T19:57:53Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2016-09-20 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/87495 | - |
dc.description.abstract | There is strong interest in discovering or designing wide-gap Chern insulators. Here we follow a Chern insulator to trivial Mott insulator transition versus interaction strength U in a honeycomb-lattice Fe-based transition-metal oxide, discovering that a spin-orbit coupling energy scale xi = 40 meV can produce and maintain a topologically entangled Chern insulating state against large band structure changes arising from an interaction strength U up to 60 times as large. Within the Chern phase the minimum gap switches from the zone corner K to the zone center Gamma while maintaining the topological structure. At a critical strength U-c, the continuous evolution of the electronic structure encounters a gap closing then reopening, upon which the system reverts to a trivial Mott insulating phase. This Chern insulator phase of honeycomb lattice Fe2+ BaFe2(PO4)(2) corresponds to a large Chern number C = -3 that will provide enhanced anomalous Hall conductivity due to the associated three edge states threading through the bulk gap of 80 meV. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Tuning ferromagnetic BaFe2(PO4)(2) through a high Chern number topological phase | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kwan-Woo | - |
dc.identifier.doi | 10.1103/PhysRevB.94.125134 | - |
dc.identifier.scopusid | 2-s2.0-84990945092 | - |
dc.identifier.wosid | 000383864600001 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.94, no.12 | - |
dc.relation.isPartOf | PHYSICAL REVIEW B | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 94 | - |
dc.citation.number | 12 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
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