CuNMR study of the pseudogap in Pb2Sr2(Y,Ca)Cu3O8+delta

Authors
Hsueh, YW Statt, B Reedyk, M Xue, JS Greedan, JE
Citation
Yw. Hsueh et al., CuNMR study of the pseudogap in Pb2Sr2(Y,Ca)Cu3O8+delta, CHIN J PHYS, 38(2), 2000, pp. 350-353
Citations number
14
Categorie Soggetti
Physics
Journal title
CHINESE JOURNAL OF PHYSICS
ISSN journal
05779073 → ACNP
Volume
38
Issue
2
Year of publication
2000
Part
2
Pages
350 - 353
Database
ISI
SICI code
0577-9073(200004)38:2<350:CSOTPI>2.0.ZU;2-4
Abstract
NMR measurements an Cu-63 in underdoped Pb2Sr2(Y,Ca)Cu3O8+delta crystals ar e reported. A pseudogap is observed in the Knight shift and spin-lattice re laxation rate for the planar Cu-63. Ln contrast to other underdoped compoun ds, the pseudogap observed in the Knight shift is weak and occurs at a sign ificantly lower temperature. On the other hand, the effect the pseudogap ha s on spin-lattice relaxation is quite similar to that in other compounds. T he manifestation of the pseudogap at q = 0 is quite different than at q = Q .