Linear temperature term of heat capacity in insulating and superconducting La-Ba-Cu-O systems.

@article{Kumagai1988LinearTT,
  title={Linear temperature term of heat capacity in insulating and superconducting La-Ba-Cu-O systems.},
  author={Kumagai and Nakamichi and Watanabe and Nakamura and Nakajima and Wada and Lederer},
  journal={Physical review letters},
  year={1988},
  volume={60 8},
  pages={
          724-727
        }
}
The heat capacity of La/sub 2-//sub x/Ba/sub x/CuO/sub 4/ was investigated between 0.8 and 10 K. The linear temperature term ..gamma..T of the heat capacity is absent in the antiferromagnetic-ordered region of xless than or equal to0.02. ..gamma.. increases abruptly from x = 0.02 to x = 0.04 where the system is still insulating at low temperature, and seems to saturate at the order of 5 mJ/mol K/sup 2/ in the superconducting region of xgreater than or equal to0.05. The correlation between… Expand
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