Critical Buckling for the Disappearance of Superconductivity in Rare-Earth-Doped La2−xSrxCuO4

B. Büchner; M. Breuer; A. Freimuth; A. P. Kampf

doi:10.1103/PhysRevLett.73.1841

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Critical Buckling for the Disappearance of Superconductivity in Rare-Earth-Doped La2−xSrxCuO4

B. Büchner, M. Breuer, A. Freimuth, A. P. Kampf

DOI 10.1103/PhysRevLett.73.1841 · Physical Review Letters

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Abstract

Analysis of the structural, transport, and superconducting properties of Nd-doped La2−xSrxCuO4 reveals a critical tilt angle of the CuO6 octahedra for the disappearance of superconductivity in the low temperature tetragonal phase. Our results indicate a strong influence of the tilt of the CuO6 octahedra on the electronic properties, suggesting the importance of spin-orbit coupling for the destruction of superconductivity and for the stabilization of a magnetic state.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-x-ySrxNdyCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
La1.8Sr0.2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	30	Pressure not reported	onset