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arXiv · 1308.2327

An effect of the uniaxial strain on the temperature of Bose-Einstein condensation of the intersite bipolarons

B. Ya. Yavidov
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Abstract

We have studied an effect of uniaxial strain to the temperature of Bose-Einstein condensation of intersite bipolarons within the framework of Extended Holstein-Hubbard model. Uniaxial lattice strains are taken into an account by introducing a generalized density-displacement type force for electron-lattice interaction. Associating the superconducting critical temperature $T_c$ with the temperature of Bose-Einstein condensation $T_{BEC}$ of intersite bipolarons we have calculated strain derivatives of $T_{BEC}$ and satisfactorily explained the results of the experiments on La-based high-$T_c$ films.

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B. Ya. Yavidov. 2013-08-10. An effect of the uniaxial strain on the temperature of Bose-Einstein condensation of the intersite bipolarons. https://doi.org/10.1016/j.physc.2010.12.008

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