Anisotropic nuclear relaxation in YBa2Cu3O7

R. E. Walstedt, W. W. Warren, R. F. Bell, G. F. Brennert, G. P. Espinosa, R. J. Cava, L. F. Schneemeyer, J. V. Waszczak

Research output: Contribution to journalArticle

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Abstract

Data are presented for the magnetic susceptibility of YBa2Cu3O7 and for the anisotropy of the copper nuclear spin-lattice relaxation time T1 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 T1 contributions, finding it incapable of accounting for the anisotropy of the observed relaxation times. A localized spin-fluctuation picture is also discussed briefly.

Original languageEnglish
Pages (from-to)9299-9302
Number of pages4
JournalPhysical Review B
Volume38
Issue number13
DOIs
StatePublished - 1 Jan 1988

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nuclear relaxation
relaxation time
magnetic permeability
anisotropy
spin-lattice relaxation
nuclear spin
partitions
copper
nuclear magnetic resonance
shift
estimates

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Walstedt, R. E., Warren, W. W., Bell, R. F., Brennert, G. F., Espinosa, G. P., Cava, R. J., ... Waszczak, J. V. (1988). Anisotropic nuclear relaxation in YBa2Cu3O7. Physical Review B, 38(13), 9299-9302. https://doi.org/10.1103/PhysRevB.38.9299
Walstedt, R. E. ; Warren, W. W. ; Bell, R. F. ; Brennert, G. F. ; Espinosa, G. P. ; Cava, R. J. ; Schneemeyer, L. F. ; Waszczak, J. V. / Anisotropic nuclear relaxation in YBa2Cu3O7. In: Physical Review B. 1988 ; Vol. 38, No. 13. pp. 9299-9302.
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Walstedt, RE, Warren, WW, Bell, RF, Brennert, GF, Espinosa, GP, Cava, RJ, Schneemeyer, LF & Waszczak, JV 1988, 'Anisotropic nuclear relaxation in YBa2Cu3O7', Physical Review B, vol. 38, no. 13, pp. 9299-9302. https://doi.org/10.1103/PhysRevB.38.9299

Anisotropic nuclear relaxation in YBa2Cu3O7. / Walstedt, R. E.; Warren, W. W.; Bell, R. F.; Brennert, G. F.; Espinosa, G. P.; Cava, R. J.; Schneemeyer, L. F.; Waszczak, J. V.

In: Physical Review B, Vol. 38, No. 13, 01.01.1988, p. 9299-9302.

Research output: Contribution to journalArticle

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AU - Espinosa, G. P.

AU - Cava, R. J.

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AB - Data are presented for the magnetic susceptibility of YBa2Cu3O7 and for the anisotropy of the copper nuclear spin-lattice relaxation time T1 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 T1 contributions, finding it incapable of accounting for the anisotropy of the observed relaxation times. A localized spin-fluctuation picture is also discussed briefly.

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Walstedt RE, Warren WW, Bell RF, Brennert GF, Espinosa GP, Cava RJ et al. Anisotropic nuclear relaxation in YBa2Cu3O7. Physical Review B. 1988 Jan 1;38(13):9299-9302. https://doi.org/10.1103/PhysRevB.38.9299