Spectroscopic and magnetooptical investigations of spin-reorientation phase transition in TbFe3(BO3)4

S. L. Gnatchenko, I. S. Kachur, V. G. Piryatinskaya, V. A. Bedarev, M. I. Pashchenko, A. V. Malakhovskii, L. N. Bezmaternykh, A. L. Sukhachev, V. L. Temerov

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3 Scopus citations

Abstract

Spectroscopic and magnetooptical investigations of spin-reorientation transition induced by a magnetic field in antiferromagnetic terbium ferroborate TbFe3(BO3)4 were performed. In the phase-transition region, a magnetic intermediate state with a periodic alternation of domains of initial and spin-flopped magnetic phases appears. As a result, a strong light scattering by the crystal takes place. It is shown that the main mechanism of light scattering is related to an appearance of the large Faraday rotation in a high-field magnetic phase. Visual polarization investigations of the domain structure in the intermediate state were carried out. The energy of the interphase boundary between the antiferromagnetic and high-field magnetic phases was calculated. The existence domain of the intermediate magnetic state was determined in the H-T coordinates.

Original languageEnglish
Pages (from-to)693-698
Number of pages6
JournalLow Temperature Physics
Volume37
Issue number8
DOIs
StatePublished - 29 Nov 2011
Externally publishedYes

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