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arxiv: cond-mat/0309193 · v1 · submitted 2003-09-08 · ❄️ cond-mat.str-el · cond-mat.supr-con

Interplay between Freezing and Superconductivity in the Optimally Doped LaEu0.20Sr0.15CuO4 under Hydrostatic Pressure

B.Simovic , M. Nicklas , P.C. Hammel , M.Huecker , B. Buechner , J.D. Thompson This is my paper
classification ❄️ cond-mat.str-el cond-mat.supr-con
keywords pressureundercuo4freezinghydrostaticlaeu0phasesuperconductivity
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We study the electronic properties of a LaEu0.20Sr0.15CuO4 single crystal under hydrostatic pressure up to 2.9 GPa. Both the freezing of the Cu 3d moments and the structural transition from the orthorhombic (LTO) to the tetragonal (LTT) phase are observed via the relaxation of the nuclear magnetization of La nuclei. Resistivity and magnetic susceptibility measurements have been carried out under pressure on the same sample. The combination of all data reveals the connection between glassy dynamics, charge localization and the disappearance of superconductivity in the LTT phase.

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