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Anomalous thermal expansion in La2−xSrxCuO4 system

  • HITC—Transport, Thermodynamic Properties, Electron-Phonon Coupling
  • Published:
Czechoslovak Journal of Physics Aims and scope

Abstract

It was found that thermal expansion Δl/l was anomalous in a wide temperature interval for single-and polycrystals of the La2−xSrxCuO4 system with various doping levels: the samples with small Sr content contracted with heating. This effect was observed up to x=0.2. Anisotropy of thermal expansion was revealed, for different crystal directions. The Δl/l anomaly was sensitive, to the oxygen content. These results are consistent with the local bosons model.

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Authors and Affiliations

  1. P. N. Lebedev Physical Institute of Russian Academy of Sciences, Leninsky pr. 53, 117924, Moscow, Russia

    N. V. Anshukova & A. I. Golovashkin

  2. Moscow Steel and Alloys Institute, Leninsky pr. 4, Moscow, Russia

    L. I. Ivanova & A. P. Rusakov

  3. Moscow State University, Moscow, Russia

    I. B. Krinetskii

Authors
  1. N. V. Anshukova
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  2. A. I. Golovashkin
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  3. L. I. Ivanova
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  4. I. B. Krinetskii
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  5. A. P. Rusakov
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Anshukova, N.V., Golovashkin, A.I., Ivanova, L.I. et al. Anomalous thermal expansion in La2−xSrxCuO4 system. Czech J Phys 46 (Suppl 3), 1189–1190 (1996). https://doi.org/10.1007/BF02562709

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  • DOI: https://doi.org/10.1007/BF02562709

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