Anomalous spectral weight transfer at the superconducting transition of Bi sub 2 Sr sub 2 CaCu sub 2 O sub 8+. delta

Journal Article · Mon Apr 22 04:00:00 EDT 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.2160· OSTI ID:5490623

Dessau, D S; Wells, B O; Shen, Z; Spicer, W E ^[1]; Arko, A J; List, R S ^[2]; Mitzi, D B; Kapitulnik, A ^[3]

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1. Stanford Electronics Laboratories, Stanford University, Stanford, California 94305 (USA)
2. Los Alamos National Laboratories, Los Alamos, New Mexico 87545 (USA)
3. Department of Applied Physics, Stanford University, Stanford, California 94305 (USA)

Anomalous spectral weight transfer at the superconducting transition of single-crystalline Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} was observed by high-resolution angle-resolved photoemission spectroscopy. As the sample goes superconducting, not only is there spectral weight transfer from the gap region to the pileup peak as in BCS theory, but along the {Gamma}-{ital {bar M}} direction there is also some spectral weight transfer from higher binding energies in the form of a dip. In addition, we note that at the superconducting transition there is a decrease (increase) in the occupied spectral weight for the spectra taken along {Gamma}-{ital {bar M}} ({Gamma}-{ital X}).

• OSTI ID: 5490623
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:16; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BCS THEORY
BINDING ENERGY
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON SPECTROSCOPY
ENERGY
ENERGY LEVELS
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
FERMI GAS
FERMI LEVEL
FLUIDS
GASES
HIGH-TC SUPERCONDUCTORS
INFORMATION
MONOCRYSTALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PHYSICAL PROPERTIES
REDUCTION
SPECTROSCOPY
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS