X-ray absorption study of the O 2p hole concentration dependence on O stoichiometry in YBa/sub 2/Cu/sub 3/O/sub x/

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.6483· OSTI ID:6845222

Kuiper, P; Kruizinga, G; Ghijsen, J; Grioni, M; Weijs, P J.W.; de Groot, F M.F.; Sawatzky, G A; Verweij, H; Feiner, L F; Petersen, H; others, and

A detailed x-ray absorption study of the oxygen K edge of YBa/sub 2/Cu/sub 3/O/sub x/ is presented. A preedge peak is observed for all samples with xgreater than or equal to6.4 which we argue to be due to holes in the O 2p band. By comparison to Li/sub x/Ni/sub (1-//sub x//sub )/O the x dependence of the number of O 2p holes in YBa/sub 2/Cu/sub 3/O/sub x/ is determined.

• Research Organization: Department of Solid State Physics of the Materials Science Centre, University of Groningen, Nijenborgh 18, NL-9747chemically bondAG Groningen, The Netherlands
• OSTI ID: 6845222
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
STOICHIOMETRY
TRANSITION ELEMENT COMPOUNDS
X RADIATION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES