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Thermal expansion derived uniaxial-pressure dependence of Tc of the quasi-two-dimensional organic superconductor κ-(BEDT-TTF)2Cu(NCS)2

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Lang, M., Modler, R., Steglich, F., Toyota, N., & Sasaki, T. (1994). Thermal expansion derived uniaxial-pressure dependence of Tc of the quasi-two-dimensional organic superconductor κ-(BEDT-TTF)2Cu(NCS)2. Physica B-Condensed Matter, 194, 2005-2006. doi:10.1016/0921-4526(94)91502-4.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-DD62-0
Abstract
BY means of ultrahigh-resolution dilatometry we have studied the linear expansion coefficients at the superconducting transition for directions along and perpendicular to the superconducting layers. A pronounced discontinuity was found along the interlayer direction which corresponds to an extraordinary large uniaxial-pressure dependence of dT(c)/dp(a)* = -4.8K/kbar. This indicats a most sensitive coupling between superconductivity and interlayer spacing in this layered superconductor.