Abstract
From measurements of the structural, superconducting and normal state transport properties of rare earth doped La2−xSrxCuO4 we find a phase boundary between a superconducting and a non-superconducting state of the low temperature tetragonal phase. This phase boundary is determined by the magnitude of the buckling of the Cu-O-Cu bonds in the CuO2 layers, suggesting the importance of spin-orbit coupling for the electronic properties of these compounds.
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Büchner, B., Breuer, M., Cramm, M. et al. Superconducting/non-superconducting phase boundary in the low temperature tetragonal phase of (La,RE)-Sr-Cu-O. J Low Temp Phys 95, 285–291 (1994). https://doi.org/10.1007/BF00754943
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DOI: https://doi.org/10.1007/BF00754943