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Title
Topological Quantum Phase Transition in 5d Transition Metal Oxide Na2IrO3
Author(s)
김충현정호균
Publication Year
2012-03-09
Abstract
Wepredictaquantumphasetransitionfromnormaltotopologicalinsulatorsinthe5dtransitionmetaloxideNa2IrO3,wherethetransitioncanbedrivenbythechangeofthelong-rangehoppingandtrigonalcrystalfieldterms.Fromthefirst-principles-derivedtight-bindingHamiltonian,wedeterminethephaseboundarythroughtheparityanalysis.Inaddition,ourfirst-principlescalculationsforNa2IrO3modelstructuresshowthattheinterlayerdistancecanbeanimportantparameterfortheexistenceofathreedimensional
strongtopologicalinsulatorphase.Na2IrO3issuggestedtobeacandidatematerialwhichcanhavebothanontrivialtopologyofbandsandstrongelectroncorrelations.
Keyword
Topogicalinsulator; qunatumphasetransition; iridiumoxide
Journal Title
Physicalreviewletters
Citation Volume
108
ISSN
0031-9007
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14091
http://www.ndsl.kr/ndsl/search/detail/article/articleSearchResultDetail.do?cn=NART62431196
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