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Local Disorder in Ln2Ti2O7 (Ln = Gd, Tb, Dy) Pyrochlores

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dc.contributor.authord'Acapito, F.
dc.contributor.authorPuri, A.
dc.contributor.authorMenushenkov, A. P.
dc.contributor.authorPopov, V. V.
dc.contributor.authorGaynanov, B. R.
dc.contributor.authorIvanov, A. A.
dc.contributor.authorKuznetsov, A. V.
dc.contributor.authorYaroslavtsev, A. A.
dc.contributor.authorМенушенков, Алексей Павлович
dc.contributor.authorПопов, Виктор Владимирович
dc.contributor.authorГайнанов, Булат Радикович
dc.contributor.authorИванов, Андрей Анатольевич
dc.contributor.authorКузнецов, Алексей Владимирович
dc.date.accessioned2024-11-21T10:06:46Z
dc.date.available2024-11-21T10:06:46Z
dc.date.issued2019
dc.description.abstract© 2019, Pleiades Publishing, Inc.The temperature dependences of extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) spectra of Ln2Ti2O7 (Ln = Gd, Tb, Dy) geometrically frustrated magnets with a pyrochlore structure are presented. The temperature dependences of the Ln-O and Ti-O interatomic bond lengths and Debye-Waller factors σ2 characterizing the local static and dynamic disordering of bonds have been obtained in the temperature range of 10–300 K. The stiffnesses of metal-oxygen bonds and the parameters of local disordering of the structure have been determined from the dependences σ2(T). The effect of the magnetic state of rare-earth ions on local features of the Ln2Ti2O7 structure has been described. The characteristics of local disorder in pyrochlores under study have been compared to dysprosium zirconate Dy2Zr2O7 having a disordered fluorite structure.
dc.format.extentС. 529-535
dc.identifier.citationLocal Disorder in Ln2Ti2O7 (Ln = Gd, Tb, Dy) Pyrochlores / d'Acapito, F. [et al.] // JETP Letters. - 2019. - 109. - № 8. - P. 529-535. - 10.1134/S0021364019080095
dc.identifier.doi10.1134/S0021364019080095
dc.identifier.urihttps://www.doi.org/10.1134/S0021364019080095
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85068551294&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000474413200009
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/18364
dc.relation.ispartofJETP Letters
dc.titleLocal Disorder in Ln2Ti2O7 (Ln = Gd, Tb, Dy) Pyrochlores
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue8
oaire.citation.volume109
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