Abstract
The positive muon spin relaxation method is applied to probe magnetic ordering in the superconducting phase of a high quality single crystal of La2−xSrxCuO4−σ (0.11≤x≤0.14). The well characterized crystal ofx=0.11 (T c=34.5 K) with nearly complete flux exclusion exhibits spin freezing at 8K(T f) with significant spin fluctuation up to 20 K. The onset of spin fluctuation andT f decrease against increasingx towardsx=0.15, suggesting an existence of a magnetic phase boundary aroundx whereT c becomes maximum.
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Torikai, E., Tanaka, I., Kojima, H. et al. Muon spin relaxation study on magnetism in high quality single crystal of a high transition temperature superconductor La2−xSrxCuO4−σ (0.11≤x≤0.14). Hyperfine Interact 63, 271–277 (1991). https://doi.org/10.1007/BF02396014
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DOI: https://doi.org/10.1007/BF02396014