X-ray photoelectron spectroscopy study of YBa sub 2 Cu sub 3 minus x Fe sub x O sub 7+ y

Journal Article · Wed Aug 01 00:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.42.2248· OSTI ID:6335550

Zhang, H ^[1]; Zhang, Q R ^[2]; Su, Z P ^[3]; Ji, M R ^[4]

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1. Department of Physics, Peking University, Beijing 100871 (People's Republic of China)
2. Department of Physics, Zhejiang University, Hangzhou, Zhejiang (People's Republic of China)
3. Department of Physics, University of Science and Technology of China, Hefei, Anhui (People's Republic of China)
4. Center for Structure and Element Analysis, University of Science Technology of China, Hefei, Anhui 230026 (People's Republic of China)

We have performed an x-ray photoelectron spectroscopy investigation on single-phase crystalline YBa{sub 2}Cu{sub 3{minus}{ital x}}Fe{sub {ital x}}O{sub 7+{ital y}} ({ital x}{lt}0.3) samples, together with structural analysis and superconductivity measurements. It turned out that, in this series of samples, the density of states near the Fermi surface increased with increasing Fe content and that Cu{sup 3+} existed in both the valence band and the core levels. We also obtained experimental evidence that the low-binding-energy component of Ba 3{ital d} was related to that of O 1{ital s}.

• OSTI ID: 6335550
• Journal Information: Physical Review, B: Condensed Matter; (USA), Vol. 42:4; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
ENERGY-LEVEL DENSITY
SUPERCONDUCTIVITY
COPPER OXIDES
IRON OXIDES
YTTRIUM OXIDES
BINDING ENERGY
CRYSTAL STRUCTURE
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
PEROVSKITES
PHOTOELECTRON SPECTROSCOPY
VALENCE
X RADIATION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ENERGY
ENERGY LEVELS
IONIZING RADIATIONS
IRON COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SPECTROSCOPY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties