M. M. Nadareishvili, K. A. Kvavadze, N. E. Hussey, A. J. Shengelaya, S. J. Tsakadze, J. Ramsden
The investigations of low-temperature heat capacity in pure and impurity doped high temperature superconductors have been performed by high-precision pulsed differential scanning calorimeter, providing the measurements of heat capacities under the thermodynamically equilibrium conditions in contrast to commonly used differential scanning calorimeters. The anomaly of low-temperature heat capacity of a wide peak form related with impurity induced static spin correlations was observed.
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http://arxiv.org/abs/1210.2049
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