Infrared-active excitations related to Ho(3+) ligand-field splitting at the commensurate-incommensurate magnetic phase transition in HoMn(2)O(5)
DC Field | Value | Language |
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dc.contributor.author | Sirenko, A. A. | - |
dc.contributor.author | O'Malley, S. M. | - |
dc.contributor.author | Ahn, K. H. | - |
dc.contributor.author | Park, S. | - |
dc.contributor.author | Carr, G. L. | - |
dc.contributor.author | Cheong, S-W. | - |
dc.date.accessioned | 2022-05-06T09:40:07Z | - |
dc.date.available | 2022-05-06T09:40:07Z | - |
dc.date.issued | 2008-11 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/57378 | - |
dc.description.abstract | Linearly polarized spectra of far-infrared (IR) transmission in HoMn(2)O(5) multiferroic single crystals have been studied in the frequency range between 8.5 and 105 cm(-1) and for temperatures between 5 and 300 K. Polarization of IR-active excitations depends on the crystallographic directions in HoMn(2)O(5) and is sensitive to the magnetic phase transitions. We attribute some of the infrared-active excitations to electric-dipole transitions between ligand-field (LF) split states of Ho(3+) ions. For light polarization along crystalline b axis, the oscillator strength of electric dipoles at low frequencies (10.5, 13, and 18 cm(-1)) changes significantly at the commensurate-incommensurate antiferromagnetic phase transition at T(3)=19 K. This effect shows a strong correlation with the pronounced steps of the b-directional static dielectric function. We propose that the LF on Ho(3+) connects the magnetism and dielectric properties of this compound through coupling with the Mn spin structure. We comment on the possibility for composite excitations of magnons and excited LF states. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Infrared-active excitations related to Ho(3+) ligand-field splitting at the commensurate-incommensurate magnetic phase transition in HoMn(2)O(5) | - |
dc.type | Article | - |
dc.identifier.doi | 10.1103/PhysRevB.78.174405 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.78, no.17 | - |
dc.description.isOpenAccess | Y | - |
dc.identifier.wosid | 000261214500044 | - |
dc.identifier.scopusid | 2-s2.0-56349084747 | - |
dc.citation.number | 17 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 78 | - |
dc.type.docType | Article | - |
dc.publisher.location | 미국 | - |
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.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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