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Electron magnetic resonance of iron-gallium borate single crystals

hal.structure.identifierPhysics and Technology Institute
dc.contributor.authorSELEZNYOVA, Kira
hal.structure.identifierPhysics and Technology Institute
dc.contributor.authorSTRUGATSKY, Mark
hal.structure.identifierPhysics and Technology Institute
dc.contributor.authorYAGUPOV, Sergey
hal.structure.identifierPhysics and Technology Institute
dc.contributor.authorMOGILENEC, Yuliya
hal.structure.identifierKapitza Institute for Physical Problems [Moscow]
dc.contributor.authorDROVOSEKOV, Alexey
hal.structure.identifierKapitza Institute for Physical Problems [Moscow]
dc.contributor.authorKREINES, Natalia
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROSA, Patrick
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorKLIAVA, Janis
dc.date.issued2019-06-14
dc.identifier.issn0021-8979
dc.description.abstractEnElectron magnetic resonance (EMR) studies of iron-gallium borate, FexGa1−xBO3, single crystals have been carried out in the frequency range ca. 8–38 GHz in magnetizing fields up to 10 kOe and the temperature range of 4–310 K. With decreasing x in the range of 0.34≤x≤1, the EMR spectra show a gradual passage from a low-frequency antiferromagnetic resonance (AFMR) mode at x = 1 toward a coexistence of AFMR and cluster magnetic resonance arising, respectively, from completely and partially magnetically ordered crystal regions. Temperature and concentration dependences of magnetic characteristics of iron-gallium borates, namely, the Néel temperature, the Dzyaloshinskii–Moriya field, and the isotropic energy gap, have been determined by means of AFMR. In contrast to unmixed FeBO3, FexGa1−xBO3 crystals with 0.34≤x≤0.85 show anomalous nonmonotonic temperature dependences of the Dzyaloshinskii–Moriya field with a maximum well below the Néel temperature suggesting the occurrence of another magnetic transition in this temperature range.
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/
dc.title.enElectron magnetic resonance of iron-gallium borate single crystals
dc.typeArticle de revue
dc.identifier.doi10.1063/1.5095753
dc.subject.halChimie/Matériaux
dc.subject.halSciences de l'ingénieur [physics]/Electromagnétisme
bordeaux.journalJournal of Applied Physics
bordeaux.page223905 (8 p.)
bordeaux.volume125
bordeaux.issue22
bordeaux.peerReviewedoui
hal.identifierhal-02176351
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02176351v1
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