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- Sundqvist, Bertil, et al.
(författare)
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Constant-pressure versus constant-volume resistivities of some high transition temperature superconductors
- 1994
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Ingår i: Physica C, volume 235-240. - : Elsevier Science B.V.. ; , s. 1407-1408
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Konferensbidrag (refereegranskat)abstract
- The resistivity varrho is always measured at constant p, while theory assumes constant V. For high temperature superconductors there are large differences between constant-p and constant-V resistivities. We have previously shown constant-V results for YBa2Cu3O7−δ and show here similar data for La2−xSrxCuO4. Constant-V data for varrho agree with the behaviour expected for a normal metal, with low-T linearity in T and saturation at high T. We speculate that similar effects will be observed in doped fullerenes (M3C60, M = Li, K, Rb, …).
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