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Magnetic and electric properties of Eu0.62Bi0.38MnO3 and Eu0.53Bi0.32Sr0.15MnO3 crystals

  • Magnetism and Ferroelectricity
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Abstract

Single crystals of Eu0.62Bi0.38MnO3 and Eu0.53Bi0.32Sr0.15MnO3 solid solutions crystallizing in an orthorhombically distorted perovskite structure were prepared. At temperatures above 120 K, Eu0.62Bi0.38MnO3 exhibits the properties of structural glass while remaining a dielectric at all temperatures. There is no long-range magnetic order in this compound. Eu0.53Bi0.32Sr0.15MnO3 behaves as a semiconductor above 120 K and exhibits a jump in conductivity at T = 175 K associated with a metal-insulator transition occurring within limited regions of the crystal. In these regions, there appears a ferromagnetic moment (due to double exchange mediated by charge carriers) and local electric polarization.

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Authors and Affiliations

  1. Ioffe Physicotechnical Institute, Russian Academy of Sciences, ul. Politekhnicheskaya 26, St. Petersburg, 194021, Russia

    E. I. Golovenchits & V. A. Sanina

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  1. E. I. Golovenchits
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  2. V. A. Sanina
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Translated from Fizika Tverdogo Tela, Vol. 47, No. 9, 2005, pp. 1660–1664.

Original Russian Text Copyright © 2005 by Golovenchits, Sanina.

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Golovenchits, E.I., Sanina, V.A. Magnetic and electric properties of Eu0.62Bi0.38MnO3 and Eu0.53Bi0.32Sr0.15MnO3 crystals. Phys. Solid State 47, 1724–1728 (2005). https://doi.org/10.1134/1.2045358

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  • DOI: https://doi.org/10.1134/1.2045358

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