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Anisotropic /sup 63/Cu nuclear relaxation in magnetically oriented powdered samples of YBa/sub 2/Cu/sub 3/O/sub 7/

Journal Article · · Phys. Rev. B: Condens. Matter; (United States)

Planar-site /sup 63/Cu nuclear spin-lattice relaxation data are presented for a magnetically oriented sample YBa/sub 2/Cu/sub 3/O/sub 7/ microcrystallites at temperatures 86 K/le//ital T//le/290 K and with the collective /ital c/ axis at /theta/=0 and /pi//2 relative to the applied field. These results yield a relaxation anisotropy in good agreement with previous data obtained with random powders. The anisotropy exhibits a small temperature dependence, suggesting the presence of dynamical correlations among the Cu(2) 3/ital d/ spins.

Research Organization:
AT T Bell Laboratories, Murray Hill, New Jersey 07974 (US)
OSTI ID:
5947571
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 40:4; ISSN PRBMD
Country of Publication:
United States
Language:
English