Physics – Condensed Matter – Superconductivity
Scientific paper
2000-06-07
Phys. Rev. Lett. 85, p405 (2000)
Physics
Condensed Matter
Superconductivity
10 pages, 4 GIF figures, to be published in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.85.405
From measurements of the ^{63}Cu Knight shift (K) and the nuclear spin-lattice relaxation rate (1/T_{1}) under magnetic fields from zero up to 28 T in the slightly overdoped superconductor TlSr_{2}CaCu_{2}O_{6.8} (T_{c}=68 K), we find that the pseudogap behavior, {\em i.e.}, the reductions of 1/T_{1}T and K above T_{c} from the values expected from the normal state at high T, is strongly field dependent and follows a scaling relation. We show that this scaling is consistent with the effects of the Cooper pair density fluctuations. The present finding contrasts sharply with the pseudogap property reported previously in the underdoped regime where no field effect was seen up to 23.2 T. The implications are discussed.
Clark George W.
Kitaoka Yoshio
Kondo Toshiaki
Kubo Yoshio
Kuhns P.
No associations
LandOfFree
Superconducting Fluctuations and the Pseudogap in the Slightly-overdoped High-Tc Superconductor TlSr2CaCu2O6.8: High Magnetic Field NMR Studies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Superconducting Fluctuations and the Pseudogap in the Slightly-overdoped High-Tc Superconductor TlSr2CaCu2O6.8: High Magnetic Field NMR Studies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Superconducting Fluctuations and the Pseudogap in the Slightly-overdoped High-Tc Superconductor TlSr2CaCu2O6.8: High Magnetic Field NMR Studies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-290005