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Low-temperature thermal-expansion anomaly in Bi2Sr2CuO6

  • Metals and Superconductors
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Abstract

Single-crystal samples of the Bi2 + x Sr2 − x − y Cu1 + y O6 + δ system revealed anomalous (negative) thermal expansion in the temperature range 10–20 K. Magnetic fields of 1–3 T were found to strongly affect the position and width of the anomaly region. A thermal-expansion singularity was detected at temperatures T≈30–50 K, which may be related to the formation of a pseudogap.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    N. V. Anshukova & A. I. Golovashkin

  2. Moscow Institute of Steel and Alloys, Leninskii pr. 4, Moscow, 117936, Russia

    L. I. Ivanova, A. P. Rusakov & D. A. Shulyatev

  3. Moscow State University, Vorob’evy gory, Moscow, 119899, Russia

    I. B. Krynetskii

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. Krynetskii
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  5. A. P. Rusakov
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  6. D. A. Shulyatev
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__________

Translated from Fizika Tverdogo Tela, Vol. 46, No. 8, 2004, pp. 1356–1359.

Original Russian Text Copyright © 2004 by Anshukova, Golovashkin, Ivanova, Krynetski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Rusakov, Shulyatev.

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Anshukova, N.V., Golovashkin, A.I., Ivanova, L.I. et al. Low-temperature thermal-expansion anomaly in Bi2Sr2CuO6 . Phys. Solid State 46, 1394–1397 (2004). https://doi.org/10.1134/1.1788768

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  • DOI: https://doi.org/10.1134/1.1788768

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