NQR and NMR studies on Pb2Sr2Y0.5Ca0.5Cu3O8+y

T. Kohara; K. Ueda; Y. Kohori; T. Noji; Y. Koike; Y. Saito

doi:10.1016/0304-8853(92)90908-7

NQR and NMR studies on Pb₂Sr₂Y_0.5Ca_0.5Cu₃O_8+y

T. Kohara, K. Ueda, Y. Kohori, T. Noji, Y. Koike, Y. Saito

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2 Citations (Scopus)

Abstract

A pair of sharp Cu NQR signals and a broad Cu NQR signal, which correspond to Cu1 and Cu2 sites respectively, were observed in Pb cuprate Pb₂Sr₂Y_0.5Cu₃O_8+y. The spin-lattice relaxation times, T₁, of both Cu2 and Pb sites decrease rapidly with decreasing temperature without enhancement just below T_c. The relaxation source for Cu1 is not of magnetic origin, but of quadrupolar type. The Knight shift (+0.28% in the normal state) on Pb NMR decreases with decreasing temperature in the superconducting state.

Original language	English
Pages (from-to)	525-526
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	104-107
Issue number	PART 1
DOIs	https://doi.org/10.1016/0304-8853(92)90908-7
Publication status	Published - 1992 Feb 2

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "NQR and NMR studies on Pb2Sr2Y0.5Ca0.5Cu3O8+y",

abstract = "A pair of sharp Cu NQR signals and a broad Cu NQR signal, which correspond to Cu1 and Cu2 sites respectively, were observed in Pb cuprate Pb2Sr2Y0.5Cu3O8+y. The spin-lattice relaxation times, T1, of both Cu2 and Pb sites decrease rapidly with decreasing temperature without enhancement just below Tc. The relaxation source for Cu1 is not of magnetic origin, but of quadrupolar type. The Knight shift (+0.28% in the normal state) on Pb NMR decreases with decreasing temperature in the superconducting state.",

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AU - Kohara, T.

AU - Ueda, K.

AU - Kohori, Y.

AU - Noji, T.

AU - Koike, Y.

AU - Saito, Y.

PY - 1992/2/2

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N2 - A pair of sharp Cu NQR signals and a broad Cu NQR signal, which correspond to Cu1 and Cu2 sites respectively, were observed in Pb cuprate Pb2Sr2Y0.5Cu3O8+y. The spin-lattice relaxation times, T1, of both Cu2 and Pb sites decrease rapidly with decreasing temperature without enhancement just below Tc. The relaxation source for Cu1 is not of magnetic origin, but of quadrupolar type. The Knight shift (+0.28% in the normal state) on Pb NMR decreases with decreasing temperature in the superconducting state.

AB - A pair of sharp Cu NQR signals and a broad Cu NQR signal, which correspond to Cu1 and Cu2 sites respectively, were observed in Pb cuprate Pb2Sr2Y0.5Cu3O8+y. The spin-lattice relaxation times, T1, of both Cu2 and Pb sites decrease rapidly with decreasing temperature without enhancement just below Tc. The relaxation source for Cu1 is not of magnetic origin, but of quadrupolar type. The Knight shift (+0.28% in the normal state) on Pb NMR decreases with decreasing temperature in the superconducting state.

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NQR and NMR studies on Pb₂Sr₂Y_0.5Ca_0.5Cu₃O_8+y

Abstract

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