Possible charge disproportionation in 3R-AgNiO2 studied by neutron powder diffraction
DC Field | Value | Language |
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dc.contributor.author | Chung, J. -H. | - |
dc.contributor.author | Lim, J. -H. | - |
dc.contributor.author | Shin, Y. J. | - |
dc.contributor.author | Kang, J. -S. | - |
dc.contributor.author | Jaiswal-Nagar, D. | - |
dc.contributor.author | Kim, K. H. | - |
dc.date.accessioned | 2021-09-09T02:10:11Z | - |
dc.date.available | 2021-09-09T02:10:11Z | - |
dc.date.created | 2021-06-10 | - |
dc.date.issued | 2008-12 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/122335 | - |
dc.description.abstract | Using neutron-scattering techniques, we have investigated the nuclear and the magnetic structures of the triangular antiferromagnet 3R-AgNiO2. The symmetry analysis based on the group theory suggests that the root 3 x root 3 charge order proposed for 2H-AgNiO2 [E. Wawrzynska et al., Phys. Rev. Lett. 99, 157204 (2007)] will have a monoclinic symmetry if present in the trigonal lattice of 3R-AgNiO2. The Rietveld refinement shows that symmetry reduction in the NiO2 layer is consistent with the prediction of the group theory. The pair density function consistently shows that the nearest-neighbor Ni-O bonds split into two groups separated by approximately 0.1 angstrom. The antiferromagnetic Bragg peaks observed below T-N=25 K can be described by the propagation vector k=(0,1, 0) of the monoclinic unit cell. The similarities of the local structure and the antiferromagnetic order strongly suggest that the novel charge order observed in 2H-AgNiO2 also exists in 3R-AgNiO2. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | ORBITAL FRUSTRATION | - |
dc.subject | LINIO2 | - |
dc.title | Possible charge disproportionation in 3R-AgNiO2 studied by neutron powder diffraction | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chung, J. -H. | - |
dc.identifier.doi | 10.1103/PhysRevB.78.214417 | - |
dc.identifier.scopusid | 2-s2.0-57949104673 | - |
dc.identifier.wosid | 000262244400062 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.78, no.21 | - |
dc.relation.isPartOf | PHYSICAL REVIEW B | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 78 | - |
dc.citation.number | 21 | - |
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 | - |
dc.subject.keywordPlus | ORBITAL FRUSTRATION | - |
dc.subject.keywordPlus | LINIO2 | - |
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