Interbilayer charge dynamics in YBa[sub 2]Cu[sub 3]O[sub 6+[ital x]]
Journal Article
·
· Physical Review Letters; (United States)
- Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States) Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States) Department of Physics, Northern Illinois University, Dekalb, Illinois 60115 (United States)
We present optical reflectivity and Raman scattering studies of YBa[sub 2]Cu[sub 3]O[sub 6+[ital x]] as a function of doping using [ital c]-axis polarized light. The [ital c]-axis optical response of YBa[sub 2]Cu[sub 3]O[sub 7] is characterized by a Drude-like conductivity and an electronic Raman continuum, indicating a weak coupling between adjacent CuO[sub 2] bilayers which is mediated by the CuO chains. With reduced doping, the [ital c]-axis Drude and continuum responses rapidly decrease, revealing a strong sensitivity of the interbilayer coupling strength to the removal of oxygen from the chain sites. We suggest that interbilayer charge transport in YBa[sub 2]Cu[sub 3]O[sub 6+[ital x]] may be governed by carrier scattering from [ital in]-[ital plane] fluctuations.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6737862
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:10; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
ANISOTROPY
BARIUM COMPOUNDS
BARIUM OXIDES
BEAMS
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER COMPOUNDS
COPPER OXIDES
COUPLING
HIGH-TC SUPERCONDUCTORS
LASER SPECTROSCOPY
OPTICAL REFLECTION
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLARIZED BEAMS
QUATERNARY COMPOUNDS
RAMAN SPECTROSCOPY
REFLECTION
SCATTERING
SPECTROSCOPY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSPORT THEORY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ALKALINE EARTH METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
ANISOTROPY
BARIUM COMPOUNDS
BARIUM OXIDES
BEAMS
CHALCOGENIDES
CHEMICAL COMPOSITION
COPPER COMPOUNDS
COPPER OXIDES
COUPLING
HIGH-TC SUPERCONDUCTORS
LASER SPECTROSCOPY
OPTICAL REFLECTION
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLARIZED BEAMS
QUATERNARY COMPOUNDS
RAMAN SPECTROSCOPY
REFLECTION
SCATTERING
SPECTROSCOPY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TRANSPORT THEORY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES