An approach for studying the influence of uniaxial strain (pressure) on the temperature of the Bose-Einstein condensation of intersite bipolarons: possible implementation for RBa$_2$Cu$_3$O$_{7-δ}$ cuprates

B. Ya. Yavidov; Sh. S. Djumanov E. Karimboev

doi:10.1016/j.physb.2012.03.051

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arXiv · 1308.2330

An approach for studying the influence of uniaxial strain (pressure) on the temperature of the Bose-Einstein condensation of intersite bipolarons: possible implementation for RBa$_2$Cu$_3$O$_{7-δ}$ cuprates

B. Ya. Yavidov·Sh. S. Djumanov E. Karimboev

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Abstract

A universal approach is proposed to study the influence of strain (pressure) on the temperature of Bose-Einstein condensation of intersite bipolarons within the extended Holstein model. It is shown that uniaxial strain (pressure) derivatives of the temperature of such a Bose-Einstein condensation strongly depend on the arrangement of ions in the lattice. In particular, they may be positive or negative. A connection between the theoretically obtained results, along with the experimental data, on the influence of uniaxial pressure (strain) on $T_c$ of RBa$_2$Cu$_3$O$_{7-δ}$ family cuprates is discussed.

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B. Ya. Yavidov, Sh. S. Djumanov E. Karimboev. 2013-08-10. An approach for studying the influence of uniaxial strain (pressure) on the temperature of the Bose-Einstein condensation of intersite bipolarons: possible implementation for RBa$_2$Cu$_3$O$_{7-δ}$ cuprates. https://doi.org/10.1016/j.physb.2012.03.051

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