DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sen, K. | - |
dc.contributor.author | Heid, R. | - |
dc.contributor.author | Souliou, S. M. | - |
dc.contributor.author | Boll, D. | - |
dc.contributor.author | Bosak, A. | - |
dc.contributor.author | Sung, N. H. | - |
dc.contributor.author | Bertinshaw, J. | - |
dc.contributor.author | Gretarsson, H. | - |
dc.contributor.author | Kim, B. J. | - |
dc.contributor.author | Weber, F. | - |
dc.contributor.author | Le Tacon, M. | - |
dc.date.accessioned | 2022-03-16T02:20:12Z | - |
dc.date.available | 2022-03-16T02:20:12Z | - |
dc.date.created | 2022-02-25 | - |
dc.date.issued | 2022-01 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/110865 | - |
dc.description.abstract | Following previous works reporting an anomalous behavior of several zone-center optical phonons across the magnetic transition of square lattice iridates Sr2IrO4 and Sr3Ir2O7, we have investigated the lattice dynamics as a function of momentum in these materials by means of high-resolution inelastic x-ray scattering. The observed phonon energies and scattering intensities across the Brillouin zone are in excellent agreement with ab initio lattice dynamical calculations based on nonmagnetic density-functional-perturbation theory. Our results do not evidence any renormalization of the phonons at finite momentum across the magnetic transition of Sr2IrO4. The only anomalous behavior was detected for the in-plane polarized longitudinal-acoustic phonon branch in Sr3Ir2O7 , which anomalously softens towards low temperatures and might be related to anisotropic negative thermal expansion in this compound. No anomalies related to potential charge ordering were observed. | - |
dc.language | English | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.relation.isPartOf | Physical Review b | - |
dc.title | Absence of temperature-dependent phonon anomalies in Sr2IrO4 and Sr3Ir2O7 | - |
dc.type | Article | - |
dc.identifier.doi | 10.1103/PhysRevB.105.045142 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Physical Review b, v.105, no.4 | - |
dc.identifier.wosid | 000751896200003 | - |
dc.citation.number | 4 | - |
dc.citation.title | Physical Review b | - |
dc.citation.volume | 105 | - |
dc.contributor.affiliatedAuthor | Kim, B. J. | - |
dc.identifier.scopusid | 2-s2.0-85124187068 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.