Infrared studies of ab-plane oriented oxide superconductors

Journal Article · Sat Oct 01 00:00:00 EDT 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.6683· OSTI ID:6844845

Timusk, T; Herr, S L; Kamaras, K; Porter, C D; Tanner, D B; Bonn, D A; Garrett, J D; Stager, C V; Greedan, J E; Reedyk, M; others, and

New results covering a wide frequency and temperature range are presented for the infrared properties of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ for light polarized in the ab plane. The normal-state optical conductivity can be described by two processes: a low-frequency Drude absorption that tracks the temperature dependence of the dc conductivity and a temperature-independent midinfrared band. In the superconducting state most of the oscillator strength of the Drude absorption moves to zero frequency and the reflectance spectrum is dominated by a plasma edge at 500 cm/sup -1/. A superconducting gap cannot be seen in our spectra.

• Research Organization: Department of Physics, University of Florida, Gainesville, Florida 32611
• OSTI ID: 6844845
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CERAMICS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CORRELATIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
INFRARED RADIATION
KRAMERS-KRONIG CORRELATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
OPTICAL PROPERTIES
OSCILLATOR STRENGTHS
OXIDES
OXYGEN COMPOUNDS
PHONONS
PHYSICAL PROPERTIES
POLARIZATION
QUASI PARTICLES
RADIATIONS
REFLECTIVITY
SUPERCONDUCTIVITY
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
ULTRAVIOLET RADIATION
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES