Screening of the middleCuO2layer inBi1.6Pb0.4Sr2Ca2Cu3O10determined from Cu NMR

Autor:	Statt Bw, Song Lm
Rok vydání:	1993
Předmět:	Superconductivity Materials science Bilayer Spin–lattice relaxation Analytical chemistry Oxide chemistry.chemical_element Knight shift Bismuth chemistry.chemical_compound Nuclear magnetic resonance chemistry Relaxation effect Layer (electronics)
Zdroj:	Physical Review B. 48:3536-3539
ISSN:	1095-3795 0163-1829
Popis:	Knight-shift measurements of the 63 Cu nuclei in the sandwiching Cu(2)O 2 layers and the middle Cu(1)O 2 layer in the three-layer bismuth oxide superconductor have been performed. Spin-latticerelaxation measurements reveal a larger spin-fluctuation enhancement at the Cu(1) sites relative to the Cu(2) sites. This and a reduced spin susceptibility in the Cu(1)O 2 layer indicates that the Cu(2)O 2 layers screen the charge transfer from the bismuth bilayer to the Cu(1)O 2 layer. Our results show that the Cu(1)O 2 layer has distinctly different physical properties than the Cu(2)O 2 layer
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::56cba608855ab476ce36137d61926db5 https://doi.org/10.1103/physrevb.48.3536 Zobrazit plný text záznamu