Abstract
We have measured the absolute values of longitudinal and transversal sound velocities in ceramic samples of Bi 2 Sr 2 Ca n-1 Cu n O 2n+4 (n=1, 2,3). We have compared various methods of calculation of "true" elastic moduli of matrix material. We used best of them to find the elastic moduli, sound velocities and Debye temperatures of the material. The calculated elastic moduli are low in a comparison with other oxide superconductors. The velocities and Debye temperatures increase with increasing n.
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Schedule a callMore From: Modern physics letters. B, Condensed matter physics, statistical physics, applied physics
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