Abstract
A pair of sharp Cu NQR signals and a broad Cu NQR signal, which correspond to the Cu1 and Cu2 sites respectively, were observed in high-Tc Pb cuprate Pb2Sr2Y0.5Ca0.5Cu3O8+y. The spin lattice relaxation times, T1, of Pb and both Cu sites decrease rapidly with decreasing temperature without enhancement just below Tc. The Knight shift (+0.28% in the normal state)of the Pb NMR signal also decreases with decreasing temperature in the superconducting state.
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© 1992 Springer-Verlag Berlin, Heidelberg
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Ueda, K. et al. (1992). NMR and NQR Studies in the Pb2Sr2Y1-xCaxCu3O8+y System. In: Iye, Y., Yasuoka, H. (eds) The Physics and Chemistry of Oxide Superconductors. Springer Proceedings in Physics, vol 60. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-77154-5_82
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DOI: https://doi.org/10.1007/978-3-642-77154-5_82
Publisher Name: Springer, Berlin, Heidelberg
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