Open AccessStrain-magneto-optics in ferrite-spinel – new magneto-optical phenomena associated with magnetoelastic interactions
Author(s) -
А. V. Telegin,
Yu. P. Sukhorukov,
Н. Г. Бебенин
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1389/1/012108
Subject(s) - spinel , magnetostriction , ferrimagnetism , ferrite (magnet) , materials science , specular reflection , condensed matter physics , magneto , magnetic field , infrared , optics , magnetization , magnet , physics , metallurgy , composite material , quantum mechanics
The correlation between magnetoreflection, magnetotransmission of unpolarized light in the infrared range and the magnetoelastic properties of magnetics is reported for the ferrimagnetic spinel CoFe 2 O 4 single crystal. The new physical mechanism responsible for the spectral and field-dependent peculiarities of magnetoreflection and magnetotransmission in the ferrite-spinel possessing strong magnetostriction is discussed. The influence of a magnetic field on specular reflection and transmission spectrum is likely to be indirect: magnetic-field-induced strong strains and deformations of the crystal lattice lead to the change in the electron energy structure and, hence, optical properties of CoFe 2 O 4 . The revealed mechanism of new infrared magnetooptical effect in magnetostrictive magnetics paves the way towards new research area called as a strain-magneto-optics.