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Redistribution of carriers in oxygen-underdoped at high hydrostatic pressure
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Image of FIG. 1.
FIG. 1.

Temperature dependence of the electrical resistance at different pressures , kbar. The solid curve was obtained immediately after the pressure was removed. Inset “a” shows the resistive transitions to the superconducting state at different pressures. Inset “b” shows the dependence . The inset shows the values of the pressure at the temperatures of the superconducting transition.

Image of FIG. 2.
FIG. 2.

Plots of for different pressures , kbar: 0 (1), 4.3 (2), and 6.3 (3). Curve (4) was measured immediately after removal of the pressure. Inset “a” shows in the region of the superconducting transition. Curve 1 is the dependence measured prior to application of pressure; curve 2 was measured immediately after a pressure of was removed; curve 3 was obtained after a hold of the sample at room temperature under a pressure of for one week; curve 4 was measured immediately after removal of the pressure, and curve 5 was measured after a hold for three days at zero pressure. Inset “b” shows the relaxation curves of measured after application of a pressure of (1) and after removal of the pressure (2).


Generic image for table
Table I.

Evolution of the parameters of a sample under conditions of application and removal of a high hydrostatic pressure.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Redistribution of carriers in oxygen-underdoped Y1Ba2Cu3O7−δ at high hydrostatic pressure