High-temperature photomagnetism in Co-doped yttrium iron garnet films

A. B. Chizhik; I. I. Davidenko; A. Maziewski; A. Stupakiewicz

doi:10.1103/PhysRevB.57.14366

High-temperature photomagnetism in Co-doped yttrium iron garnet films

A. B. Chizhik, I. I. Davidenko, A. Maziewski, and A. Stupakiewicz

Phys. Rev. B 57, 14366 – Published 1 June 1998

Abstract

Magnetization processes in $(YCa)_{3} (FeCoGe)_{5} O_{12}$ epitaxial films induced by linearly polarized argon laser light $(λ = 0.488 μ m$ ) were observed at room temperature. These processes happened through a displacement of boundary between magnetic domain phases with different in-plane magnetization components. The direction and amplitude of the displacement depended on the polarization direction and light intensity. The results are explained within the scope of a phenomenological theory of photoinduced anisotropy. The microscopic origin of the photomagnetic effect in investigated materials is qualitatively discussed.

Received 6 October 1997

DOI:https://doi.org/10.1103/PhysRevB.57.14366

Authors & Affiliations

A. B. Chizhik^*, I. I. Davidenko^†, A. Maziewski^‡, and A. Stupakiewicz

Institute of Physics, University of Bialystok, 41 Lipowa, 15424 Bialystok, Poland

^*Permanent address: Institute for Low Temperature Physics & Engineering, 47 Lenin Avenue, 310164 Kharkov, Ukraine.
^†Permanent address: Interfaculty Research Laboratory of Information Recording Applied Problems, Kiev University, 60 Vladimirskaya, 252033 Kiev, Ukraine.
^‡Author to whom correspondence should be addressed.

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Vol. 57, Iss. 22 — 1 June 1998

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Physical Review B

covering condensed matter and materials physics