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Superconducting Fluctuation Effects on the Spin-Lattice Relaxation Rate in YBa_2Cu_3O_{6.95}

V. F. Mitrovi{ć}·H. N. Bachman·W. P. Halperin·M. Eschrig·J. A. Sauls·A. P. Reyes·P. Kuhns·W. G. Moulton
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Abstract

We report 63Cu(2) spin-lattice relaxation rate measurements of YBa_2Cu_3O_{6.95} in magnetic fields from 2.1 T to 27.3 T obtained from 17O(2,3) nuclear magnetic resonance spin-spin relaxation. For T < 120 K, the spin-lattice rate increases with increasing magnetic field. We identify this magnetic field dependence with the change in the low-energy spectral weight originating from d-wave pairing fluctuation corrections to the density of states.

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V. F. Mitrovi{ć}, H. N. Bachman, W. P. Halperin, M. Eschrig, J. A. Sauls, A. P. Reyes, P. Kuhns, W. G. Moulton. 1999-01-22. Superconducting Fluctuation Effects on the Spin-Lattice Relaxation Rate in YBa_2Cu_3O_{6.95}. https://doi.org/10.1103/physrevlett.82.2784

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