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JOURNALS // Fizika Tverdogo Tela // Archive

Fizika Tverdogo Tela, 2016 Volume 58, Issue 4, Pages 656–659 (Mi ftt10005)

This article is cited in 6 papers

Magnetism

Model of the magnetorefractive effect in manganites within the effective medium theory

A. N. Yurasova, A. V. Teleginb, V. P. Sukhorukovb

a MIREA — Russian Technological University, Moscow
b Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg

Abstract: The magnetorefractive effect (MRE) in manganites has been studied within the effective medium theory. The MRE has been calculated in manganites La$_{1-x}$K$_{x}$MnO$_{3}$ ($x$ = 0.1 and 0.15) for light transmission and reflection. Good agreement with experimental results demonstrates direct relation of the MRE to the magnetoresistance and optical properties of manganites with various substitution levels. It has been shown that the MRE can exceed 10% in the near- and mid-IR region near the magnetic phase transition and can change sign during light transmission and reflection in the region of phonon modes. The results make it possible to recommend the MRE as a contactless method for studying magnetoresistive materials and for developing sensors and microelectronic elements.

Keywords: Manganite, Magnetic Phase Transition, Effective Medium Theory, Substitution Level, Contactless Method.

Received: 18.08.2015


 English version:
Physics of the Solid State, 2016, 58:4, 674–677

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