Data di Pubblicazione:
2004
Abstract:
63,65Cu NMR spectra and relaxation measurements in RuSr2GdCu2O8; in the temperature range 5-300 K; are reported. From the second-order quadrupole broadening of the NMR line the quadrupole coupling constant turns out nu(Q) similar or equal to 28.5 MHz: NMR line broadening, possibly related to Ru spins ordering, is observed on cooling. The spin-lattice relaxation rates 2W; involving the in-plane magnetic correlation length, do not show critical behavior above the ordering temperature. On approaching the superconducting transition 2W displays a temperature dependence similar to the one in underdoped YBCO.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
superconduttività; risonanza magnetica nucleare; dinamica di spin
Elenco autori:
Tedesco, Patrizia; Lascialfari, Alessandro; Rigamonti, Attilio; Zucca, Ileana; Vecchione, A.; Gombos, M.; Pace, S.; Ferretti, M.; Cimberele, M. R.; Horvatic, M.
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