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Correlation between the giant volume magnetostriction and softening of the crystal lattice in GMR manganites

  • Proceedings of the XX International Jubilee School-Seminar “New Magnetic Materials of Microelectronics”
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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

Giant volume magnetostriction near the Curie temperature T C has been revealed in single crystals and ceramics of the La1 − x A xMnO3 (A = Sr, Ba, Ca, Ag) and Re 1 − x SrxMnO3 (Re = Sm, Tb0.25Nd0.3, Eu0.4Nd0.15, Eu) compositions; its values were as high as ∼10−3 in a magnetic field of 8.2 kOe. The giant volume magnetostriction and giant magnetoresistance behave similarly near T C: the temperature dependences of their moduli pass through a maximum, and their isotherms are similar. This phenomenon is explained by the presence of a magnetic two-phase state in these compositions, which is caused by the strong s-d exchange.

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Authors and Affiliations

  1. Moscow State University, Leninskie gory, Moscow, 119992, Russia

    L. I. Koroleva, R. V. Demin, A. I. Abramovich, D. M. Zashchirinskii, A. V. Kozlov & V. Yu. Pavlov

Authors
  1. L. I. Koroleva
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  2. R. V. Demin
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  3. A. I. Abramovich
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  4. D. M. Zashchirinskii
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  5. A. V. Kozlov
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  6. V. Yu. Pavlov
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Corresponding author

Correspondence to L. I. Koroleva.

Additional information

Original Russian Text © L.I. Koroleva, R.V. Demin, A.I. Abramovich, D.M. Zashchirinskii, A.V. Kozlov, V.Yu. Pavlov, 2007, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2007, Vol. 71, No. 11, pp. 1623–1625.

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Koroleva, L.I., Demin, R.V., Abramovich, A.I. et al. Correlation between the giant volume magnetostriction and softening of the crystal lattice in GMR manganites. Bull. Russ. Acad. Sci. Phys. 71, 1581–1583 (2007). https://doi.org/10.3103/S1062873807110330

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  • DOI: https://doi.org/10.3103/S1062873807110330

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