Raman properties intrinsic to superconductivity in the Bi-Sr-Ca-Cu-O system

Journal Article · Thu Feb 01 00:00:00 EST 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.2109· OSTI ID:6910280

Slakey, F; Klein, M V; Bukowski, E D; Ginsberg, D M ^[1]

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1. Department of Physics and Materials Research Laboratory, and the Science and Technology Center for Superconductivity University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801 (US)

Previous Raman studies of the Bi-Sr-Ca-Cu-O system have provided an abundance of interesting results including the existence of an electronic continuum which redistributes below {ital T}{sub {ital c}}, an anomalous phonon renormalization effect, and Fano antiresonance behavior of the 290-cm{sup {minus}1} vibrational mode. We attempt in this paper to determine what connection these features may have to the superconducting behavior of this compound. In order to draw such conclusions a systematic study has been carried out on numerous Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{Delta}} samples. Our Raman investigations indicate that it is the continuum redistribution and a linear low-energy contribution to the scattering intensity at temperatures {ital T}{much lt}{ital T}{sub {ital c}} that are intrinsic to superconductivity in this system.

• OSTI ID: 6910280
• Journal Information: Physical Review, B: Condensed Matter; (USA), Vol. 41:4, Issue 4; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BISMUTH OXIDES
RAMAN SPECTROSCOPY
SUPERCONDUCTIVITY
CALCIUM OXIDES
COPPER OXIDES
STRONTIUM OXIDES
PHONONS
TRANSITION TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
LASER SPECTROSCOPY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUASI PARTICLES
SPECTROSCOPY
STRONTIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
656100 - Condensed Matter Physics- Superconductivity