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

H. N. Bachman; J. A. Sauls; M. Eschrig; (National High Magnetic Field Lab; (Northwestern University) A. P. Reyes; P. Kuhns; Tallahassee); V. F. Mitrovi{\'c}; W. G. Moulton; W. P. Halperin

arxiv: cond-mat/9901230 · v1 · submitted 1999-01-22 · ❄️ cond-mat.supr-con

Superconducting Fluctuation Effects on the Spin-Lattice Relaxation Rate in YBa₂Cu₃O_(6.95)

V. F. Mitrovi{\'c} , H. N. Bachman , W. P. Halperin , M. Eschrig , J. A. Sauls , (Northwestern University) A. P. Reyes , P. Kuhns , W. G. Moulton

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(National High Magnetic Field Lab Tallahassee)

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classification ❄️ cond-mat.supr-con

keywords magneticraterelaxationspin-latticefieldfluctuationchangecorrections

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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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Superconducting Fluctuation Effects on the Spin-Lattice Relaxation Rate in YBa₂Cu₃O_(6.95)

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