Effect of Forming Pressure on the Critical Temperature in YBa 2 Cu 3 O 7−δ  Superconductors | Zendy

AlShibani K. | Zendy; AlAql A. | Zendy; AlMuezzin A. | Zendy; Humeida H. | Zendy; Nakhmedov E. P. | Zendy; Firat T. | Zendy; Öztürk O. | Zendy; Saçli Ö. A. | Zendy

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Effect of Forming Pressure on the Critical Temperature in YBa 2 Cu 3 O 7−δ Superconductors

Author(s) -

AlShibani K.,

AlAql A.,

AlMuezzin A.,

Humeida H.,

Nakhmedov E. P.,

Firat T.,

Öztürk O.,

Saçli Ö. A.

Publication year - 1995

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221890120

Subject(s) - superconductivity , electrical resistivity and conductivity , condensed matter physics , quantum tunnelling , materials science , lattice (music) , high temperature superconductivity , superconducting transition temperature , physics , quantum mechanics , acoustics

The effect of pressure on the critical temperature T c is studied for YBa 2 Cu 3 O 7–δ 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 d T c0 /d P ≈ (0.070 ± 0.010) × 10 −8 K/Pa is determined. A new mechanism based on the variation of the interlayer tunneling integral t ⟂ is used to analyse the experiment results.

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