Publication:
EFFECT OF FORMING PRESSURE ON THE CRITICAL-TEMPERATURE IN YBA2CU3O7-DELTA SUPERCONDUCTORS

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1995

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AKADEMIE VERLAG GMBH

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Abstract

The effect of pressure on the critical temperature T-c is studied for YBa2Cu3O7-delta compounds prepared under various forming pressures. A systematic decrease in lattice parameters is observed with forming pressure. Resistivity measurements show an increase of the onset temperature T-c0 with forming pressure. A value of dT(c0)/dP approximate to (0.070 +/- 0.010) x 10(-8) K/Pa is determined. A new mechanism based on the variation of the interlayer tunneling integral t(perpendicular to) is used to analyse the experiment results.

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HIGH-TC SUPERCONDUCTORS, O COMPOUND SYSTEM, TRANSITION-TEMPERATURE, CU-O, HYDROSTATIC-PRESSURE, CARRIER CONCENTRATION, DEPENDENCE, YBA2CU4O8, GPA, LA2CUO4

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https://hdl.handle.net/11424/226981

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