Soft phonon mode in the high-T/sub c/ superconductor Tl-Ba-Ca-Cu-O

Journal Article · Sat Apr 01 00:00:00 EST 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.39.7336· OSTI ID:6151454

Koyama, Y; Hoshiya, H

Thermal diffuse scattering due to a transverse phonon (eparallel(010)) propagating along the (100) direction was found in electron-diffraction patterns of Tl-Ba-Ca-Cu-O with T/sub c/ of 117 K. The scattering has an intensity maximum at the middle between two fundamental spots along the <100> directions and its intensity increases with decreasing temperature. That is, the Tl oxide with high T/sub c/ exhibits the soft-phonon behavior.

• Research Organization: Department of Metallurgy, Tokyo Institute of Technology, Oh-okayama, Meguro-ku, Tokyo 152, Japan
• OSTI ID: 6151454
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 39:10
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
PHONONS
CALCIUM OXIDES
COPPER OXIDES
THALLIUM OXIDES
ELECTRON DIFFRACTION
LATTICE VIBRATIONS
LOW TEMPERATURE
SUPERCONDUCTIVITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUASI PARTICLES
SCATTERING
THALLIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
&amp; Refractories- Physical Properties
656100 - Condensed Matter Physics- Superconductivity