Pressure dependence of superconductivity in doped two-leg ladder cuprates

Details Pressure dependence of superconductivity in doped two-leg ladder cuprates Pressure dependence of superconductivity in doped two-leg ladder cuprates

2006-09-20

arxiv.org/abs/cond-mat/0609499v2

Phys. Lett. A366, 611-614 (2007)

Physics

Condensed Matter

Superconductivity

5 pages, 3 figures, added figure 3, references, and discussions

Scientific paper

10.1016/j.physleta.2007.02.060

Within the kinetic energy driven superconducting mechanism, the effect of the pressure on superconductivity in doped two-leg ladder cuprates is studied. It is shown that the superconducting transition temperature in doped two-leg ladder cuprate superconductors increases with increasing pressure in the underpressure regime, and reaches a maximum in the optimal pressure, then decreases in the overpressure regime. This domed shape of the pressure dependence of the superconducting transition temperature is similar to that of the pressure dependence of the longitudinal part of the superconducting gap parameter, indicating that superconductivity in doped two-leg ladder cuprates is mainly produced by the development of the pairing correlation along legs.

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