This article is cited in 5 papers

Electronic properties of semiconductors

Static and dynamic photoinduced magnetic effects in yttrium-iron garnet lightly doped with barium ions

N. V. Vorob'eva, R. Z. Khalilov

Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences

Abstract: In yttrium-iron garnet lightly doped with barium, direct measurements of the photoinduced changes in magnetostrictive strains disagree with those in magnetostriction constants at 78–100 K. This is attributed to a considerable photoinduced modification of the initial state in this sample due to a redistribution of the charge (during illumination) between cations of the ferromagnetic octahedral sublattice. In the same sample, the temperature dependence of the photoinduced disaccomodation of magnetic permeability characterizing the initial demagnetized state is measured and calculated. A change in the electron mechanism of the phenomenon during the transition to room temperature is shown. The conclusion about the promising prospects for using such samples for remagnetization by light is advanced.

Received: 12.09.2011
Accepted: 18.10.2011

 English version: Semiconductors, 2012, 46:4, 452–455

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