Phonon anomaly at T sub c in (Y/Er)Ba sub 2 Cu sub 3 O sub 7-. delta
Conference
·
OSTI ID:5344955
Ion channeling in single crystals of (Y/Er)Ba{sub 2}Cu{sub 3}O{sub 7-{delta}} reveal an abrupt change ({approximately}0.01A) at the superconducting transition temperature (T{sub c}) in displacements of the Cu and O atoms perpendicular to the (001) direction. This anomalous change in atomic displacements shifts directly with stoichiometry-induced changes in T{sub c}. Blocking patterns indicate no large structural changes across T{sub c}. 12 refs., 3 figs.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5344955
- Report Number(s):
- CONF-891119-25; ON: DE90003562
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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Related Subjects
36 MATERIALS SCIENCE
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHANNELING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ERBIUM COMPOUNDS
ERBIUM OXIDES
ION CHANNELING
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHANNELING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ERBIUM COMPOUNDS
ERBIUM OXIDES
ION CHANNELING
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES