Magnetic field independence of the spin gap in YBa_2Cu_3O_{7-delta}

A. P. Reyes; C. H. Pennington; (Department of Physics; FL); J. A. Martindale; J. L. Smith; K. Gorny; (Los Alamos National Laboratory) P. L. Kuhns; Ohio State University) P. C. Hammel; O. M. Vyaselev

arxiv: cond-mat/9812013 · v1 · submitted 1998-12-01 · ❄️ cond-mat.str-el · cond-mat.supr-con

Magnetic field independence of the spin gap in YBa₂Cu₃O_(7-delta)

K. Gorny , O. M. Vyaselev , J. A. Martindale , V. A. Nandor , C. H. Pennington , (Department of Physics , Ohio State University) P. C. Hammel , W. L. Hults

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J. L. Smith (Los Alamos National Laboratory) P. L. Kuhns A. P. Reyes W. G. Moulton (National High Magnetic Field Laboratory; Tallahassee FL)

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classification ❄️ cond-mat.str-el cond-mat.supr-con

keywords magneticspindeltafieldissuesmeasurementsnearabove

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We report, for magnetic fields of 0, 8.8, and 14.8 Tesla, measurements of the temperature dependent ^{63}Cu NMR spin lattice relaxation rate for near optimally doped YBa_2Cu_3O_{7-delta}, near and above T_c. In sharp contrast with previous work we find no magnetic field dependence. We discuss experimental issues arising in measurements of this required precision, and implications of the experiment regarding issues including the spin or pseudo gap.

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Magnetic field independence of the spin gap in YBa₂Cu₃O_(7-delta)

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