Pressure dependence of high-Tc superconductors |
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| Authors: | Rinke J. Wijngaarden J. J. Scholtz E. N. van Eenige K. Heeck R. Griessen |
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| Affiliation: | Department of Physics and Astronomy , Free University , De Boelelaan 1081,1081 HV, Amsterdam, Netherlands |
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| Abstract: | ![]()
Abstract We recently developed a method to derive the charge carrier concentration 6 (holes per planar copper atom) under pressure from the measured Tc and Hc2. The different behaviour of YBa2Cu4O8, CaLaBaCu3)7 and other compounds can be understood from the difference in ?δ/?p using a model where Tc is quadratically dependent upon δ and where δ is linearly dependent upon pressure, as observed experimentally. |
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| Keywords: | High temperature superconductors critical temperature upper critical field |
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