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RESEARCH PRODUCT
EPR hyperfine structure of F‐type centres in pure LiBaF 3 crystal
I. TaleAndris GulansUldis RogulisNoboru IchinoseE. ElstsKiyoshi ShimamuraA. FedotovsMartin Niklsubject
CrystalCrystallographyQualitative analysisFe dopedlawChemistryAnalytical chemistryCondensed Matter PhysicsElectron paramagnetic resonanceHyperfine structureSpectral linelaw.inventiondescription
We studied EPR spectra of pure LiBaF3 sample of high quality. For EPR measurements LiBaF3 sample was X-irradiated at room temperature, however spectra could be observed at low temperatures - at 77 K. All hyperfine structure lines of F-type centre could be well resolved contrary to our earlier studies of Fe doped LiBaF3 crystal. Qualitative analysis with g-tensor parameters derived from magneto-optical measurements showed that the F-type centre observed earlier by MCD-EPR techniques is the same F-type centre we observe with the EPR. We analyse origin of the hyperfine structure of the EPR spectra and their angular dependencies and discuss the structure of F-type centres in the LiBaF3 crystal. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-03-01 | physica status solidi c |