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DC Field | Value | Language |
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dc.citation.endPage | 3442 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 3434 | - |
dc.citation.title | INORGANIC CHEMISTRY | - |
dc.citation.volume | 61 | - |
dc.contributor.author | Hughey, Kendall D. | - |
dc.contributor.author | Lee, Minseong | - |
dc.contributor.author | Nam, Jisoo | - |
dc.contributor.author | Clune, Amanda J. | - |
dc.contributor.author | O'Neal, Kenneth R. | - |
dc.contributor.author | Tian, Wei | - |
dc.contributor.author | Fishman, Randy S. | - |
dc.contributor.author | Ozerov, Mykhaylo | - |
dc.contributor.author | Lee, JunHee | - |
dc.contributor.author | Zapf, Vivien S. | - |
dc.contributor.author | Musfeldt, Janice L. | - |
dc.date.accessioned | 2023-12-21T14:37:32Z | - |
dc.date.available | 2023-12-21T14:37:32Z | - |
dc.date.created | 2022-05-19 | - |
dc.date.issued | 2022-02 | - |
dc.description.abstract | We combine high field polarization, magneto-infrared spectroscopy, and lattice dynamics calculations with prior magnetization to explore the properties of (NH4)(2)[FeCl5 center dot(H2O)]-a type II molecular multiferroic in which the mixing between charge, structure, and magnetism is controlled by intermolecular hydrogen and halogen bonds. Electric polarization is sensitive to the series of field-induced spin reorientations, increasing linearly with the field and reaching a maximum before collapsing to zero across the quasi-collinear to collinear-sinusoidal reorientation due to the restoration of inversion symmetry. Magnetoelectric coupling is on the order of 1.2 ps/m for the P parallel to c, H parallel to c configuration between 5 and 25 T at 1.5 K. In this range, the coupling takes place via an orbital hybridization mechanism. Other forms of mixing are active in (NH4)(2)[FeCl5 center dot(H2O)] as well. Magneto-infrared spectroscopy reveals that all of the vibrational modes below 600 cm(-1) are sensitive to the field-induced transition to the fully saturated magnetic state at 30 T. We analyze these local lattice distortions and use frequency shifts to extract spin-phonon coupling constants for the Fe-O stretch, Fe-OH2 rock, and NH4+ libration. Inspection also reveals subtle symmetry breaking of the ammonium counterions across the ferroelectric transition. The coexistence of such varied mixing processes in a platform with intermolecular hydrogen- and halogen-bonding opens the door to greater understanding of multiferroics and magnetoelectrics governed by through-space interactions. | - |
dc.identifier.bibliographicCitation | INORGANIC CHEMISTRY, v.61, no.8, pp.3434 - 3442 | - |
dc.identifier.doi | 10.1021/acs.inorgchem.1c03311 | - |
dc.identifier.issn | 0020-1669 | - |
dc.identifier.scopusid | 2-s2.0-85125424784 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/58572 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.inorgchem.1c03311 | - |
dc.identifier.wosid | 000790015500010 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | High-Field Magnetoelectric and Spin-Phonon Coupling in Multiferroic (NH4)(2)[FeCl5 center dot(H2O)] | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Inorganic & Nuclear | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | FORCE-CONSTANTS | - |
dc.subject.keywordPlus | FERROELECTRICITY | - |
dc.subject.keywordPlus | (NH4)2FECL5.H2O | - |
dc.subject.keywordPlus | K2FECL5.H2O | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | NEUTRON | - |
dc.subject.keywordPlus | RAMAN-SPECTRA | - |
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