Ion-channeling anomalies at the superconducting transition temperature in single-crystal YBa sub 2 Cu sub 3 O sub 7 minus y

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.826· OSTI ID:6963599

Haga, T; Yamaya, K; Abe, Y ^[1]; Tajima, Y; Hidaka, Y ^[2]

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1. Department of Nuclear Engineering, Hokkaido University, Sapporo 060, (Japan)
2. Nippon Telegraph and Telephone Corporation, Opto-Electronics Laboratories, 162 Tokai, Ibaragi-ken 319-11, (Japan)

The temperature dependence of the Rutherford backscattering in the {l angle}001{r angle} axial channeling mode for each constituent atom of single-crystal YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital y}} has been carried out to study a change in the structural properties at the superconducting transition. Anomalies of channeling behavior observed across the superconducting transition temperature suggest a structural instability or a change in the lattice. The anomalies of channeling for Y and Ba atoms suggest the phonon softening, while those for Cu and O atoms are not explained in terms of only the phonon softening, but probably indicate complicated lattice dynamics of Cu and O atoms.

• OSTI ID: 6963599
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:1; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656003 -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHANNELING
CHARGED PARTICLES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
CRYSTALS
DEUTERIUM IONS
ENERGY RANGE
HELIUM IONS
ION CHANNELING
IONS
LATTICE VIBRATIONS
LOW TEMPERATURE
MEV RANGE
MEV RANGE 01-10
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES