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Title: Low temperature thermodynamics of charged bosons in a random potential and the specific heat of La2−xSrxCuO4 below Tc.
Authors: Alexandrov, A.S.
Giles, R.T.
Issue Date: 2006
Abstract: We propose a simple analytical form of the partition function for charged bosons localised in a random potential and derive the consequent thermodynamics below the superfluid transition temperature. In the low temperature limit, the specific heat C depends on the localisation length exponent ν: C is linear for ν ≤ 1, but for ν > 1 we obtain C ∝ T1/ . This unusual sub-linear temperature dependence of the specific heat has recently been observed in La2−xSrxCuO4 below Tc.
Description: This is a pre-print. It is also available at: http://arxiv.org/abs/cond-mat/9712029.
URI: https://dspace.lboro.ac.uk/2134/1188
Appears in Collections:Pre-Prints (Physics)

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