Studies of magnetic and optic properties of rare-earth gallo-ferroborates by Mössbauer and optical spectroscopy

Magnetic and optical properties of GdFe 3− x Ga x (BO 3) 4 single crystals are investigated by Mössbauer and optical spectroscopy. The GdFe 3(BO 3) 4 multielectron band structure model is derived. A high- and low-spin crossover of Fe 3+ ion, a collapse of the magnetic moment, the suppression of Coul...

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Bibliographic Details
Published in:	Physica. B, Condensed matter Vol. 359; pp. 1321 - 1323
Main Authors:	Bayukov, O.A., Gavrilyuk, A.M., Zabluda, V.N., Lyubutin, I.S., Ovchinnikov, S.G., Potseluyko, A.M., Tomas, M., Trojan, I.A., Kharlamova, S.A.
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 30-04-2005
Subjects:	Antiferromagnets Borates Strongly correlated electron system 71.27.+a 61.50.Ks 71.30.+h Antiferromagnets Strongly correlated electron system Borates
Online Access:	Get full text
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Summary:	Magnetic and optical properties of GdFe 3− x Ga x (BO 3) 4 single crystals are investigated by Mössbauer and optical spectroscopy. The GdFe 3(BO 3) 4 multielectron band structure model is derived. A high- and low-spin crossover of Fe 3+ ion, a collapse of the magnetic moment, the suppression of Coulomb correlations, and insulator–semiconductor transition are predicted. The jump of an energy gap is measured at pressure 43 GPa.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0921-4526
DOI:	10.1016/j.physb.2005.01.397