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The low-temperature specific heat and electrical resistivity of the polycrystalline non-stoichiometric manganites La 0.95- x Sr x MnO 3 have been investigated in the doping region x = 0.00-0.30. The specific heat has terms proportional to T and T 3 . The resistivity of the samples decreases as T 1/2 with increasing temperature, goes through a minimum and then increases proportionally to T 3 . The temperature T min , corresponding to the minimum of the resistivity, shifts with Sr content as T min ~ x -2/5 .
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Michalopoulou et al. (2001) studied this question.
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