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dc.contributor.author Glamazda, A. -
dc.contributor.author Lemmens, P. -
dc.contributor.author Do, S. -H. -
dc.contributor.author Kwon, Y. S. -
dc.contributor.author Choi, K. -Y. -
dc.date.accessioned 2018-01-25T01:05:49Z -
dc.date.available 2018-01-25T01:05:49Z -
dc.date.created 2017-08-09 -
dc.date.issued 2017-05-18 -
dc.identifier.issn 2469-9950 -
dc.identifier.uri http://hdl.handle.net/20.500.11750/5004 -
dc.description.abstract Raman scattering has been employed to investigate lattice and magnetic excitations of the honeycomb Kitaev material α-RuCl3 and its Heisenberg counterpart CrCl3. Our phonon Raman spectra give evidence for a first-order structural transition from a monoclinic to a rhombohedral structure for both compounds. Significantly, only α-RuCl3 features a large thermal hysteresis, consistent with the formation of a wide phase of coexistence. In the related temperature interval of 70-170 K, we observe a hysteretic behavior of magnetic excitations as well. The stronger magnetic response in the rhombohedral compared to the monoclinic phase evidences a coupling between the crystallographic structure and low-energymagnetic response. Our results demonstrate that the Kitaev magnetism concomitant with fractionalized excitations is susceptible to small variations of bonding geometry. © 2017 American Physical Society. -
dc.publisher American Physical Society -
dc.title Relation between Kitaev magnetism and structure in alpha-RuCl3 -
dc.type Article -
dc.identifier.doi 10.1103/PhysRevB.95.174429 -
dc.identifier.scopusid 2-s2.0-85022198096 -
dc.identifier.bibliographicCitation Physical Review B, v.95, no.17 -
dc.subject.keywordPlus CrCl3 -
dc.subject.keywordPlus Diffraction -
dc.subject.keywordPlus Honeycomb -
dc.subject.keywordPlus Iridate -
dc.subject.keywordPlus Vibrational Spectra -
dc.citation.number 17 -
dc.citation.title Physical Review B -
dc.citation.volume 95 -
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Department of Physics and Chemistry Quantum Functional Materials Laboratory 1. Journal Articles

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