Heat Capacity Anomaly of LSCO Cuprates with Nonmagnetic Impurity

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The low temperature heat capacity investigations on pure(y=0) and Zn-doped La1.84Sr0.16Cu1-yZnyO4 samples have been performed in the interval of 1.8-60K by a new method of high-precision, pulsed differential calorimetry (PDC), which provides the measurements under the equilibrium conditions, in contrast to commonly used differential scanning calorimeters (DSC). For these systems a new heat capacity anomaly was observed, which is associated with Zn impurities and has the form of one wide peak. It does not show a phonon character shifts towards the higher temperatures with the increase of Zn content.
9 pages, 2 figures

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/227882

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0904.3128
 http://arxiv.org/abs/0904.3128

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arXiv