Dynamically assisted interlayer hopping in YBa[sub 2]Cu[sub 3]O[sub 6+[ital x]]
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Department of Physics and Frederick Seitz 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)
We report evidence from [ital c]-axis-polarized Raman scattering and optical-reflectivity measurements that doping-induced and phonon-mediated changes in the O(4)-Cu(1)-O(4) structure influence [ital c]-axis charge dynamics in YBa[sub 2]Cu[sub 3]O[sub 6+[ital x]]. With increased doping, we observe a rapid increase in the interbilayer hopping rate which we suggest may be caused by the systematic decrease in the Cu(2)-O(4) bond length. Also, [ital c]-axis-polarized Raman scattering measurements provide evidence that dynamical modulation of the O(4)-Cu(2) bond length by [ital c]-axis phonons contributes to assisted'' interbilayer hopping.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6841775
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 50:18; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHARGE TRANSPORT
COPPER COMPOUNDS
COPPER OXIDES
ELECTROMAGNETIC RADIATION
HIGH-TC SUPERCONDUCTORS
INFRARED RADIATION
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
RADIATIONS
RAMAN SPECTRA
REFLECTIVITY
SPECTRA
SUPERCONDUCTORS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VISIBLE RADIATION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHARGE TRANSPORT
COPPER COMPOUNDS
COPPER OXIDES
ELECTROMAGNETIC RADIATION
HIGH-TC SUPERCONDUCTORS
INFRARED RADIATION
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
RADIATIONS
RAMAN SPECTRA
REFLECTIVITY
SPECTRA
SUPERCONDUCTORS
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
VISIBLE RADIATION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES