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Anisotropic nuclear relaxation in YBa/sub 2/Cu/sub 3/O/sub 7/

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

Data are presented for the magnetic susceptibility of YBa/sub 2/Cu/sub 3/O/sub 7/ and for the anisotropy of the copper nuclear spin-lattice relaxation time T/sub 1/ in the normal state for planar (Cu(2)) sites in this system. Using the Cu NMR shift to partition the susceptibility and estimate the density of states, we analyze the conventional enhanced Korringa model of T/sub 1/ contributions, finding it incapable of accounting for the anisotropy of the observed relaxation times. A localized spin-fluctuation picture is also discussed briefly.

Research Organization:
ATandT Bell Laboratories, Murray Hill, New Jersey 07974
OSTI ID:
6749249
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:13; ISSN PRBMD
Country of Publication:
United States
Language:
English