Circular dichroism observed in bismuthate superconductors

Journal Article · Wed May 01 00:00:00 EDT 1991 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.43.11408· OSTI ID:5808247

Lyons, K B; Dillon, Jr, J F; Hellman, E S; Hartford, E H; McGlashan-Powell, M ^[1]

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1. AT T Bell Laboratories, Murray Hill, New Jersey 07974 (US)

We report observation of circular dichroism (CD) in reflection from two bismuthate superconducting thin films, rubidium barium bismuthate. This signal is similar to that recently reported in cuprate materials, with the exception that one sample shows a dramatic rise in the observed CD variance at the superconducting transition. These results suggest that a mechanism other than anyons, and thus perhaps unrelated to the superconductivity mechanism itself, might be necessary to explain the CD observed.

• OSTI ID: 5808247
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:13; ISSN PRBMD; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
DICHROISM
FILMS
LIGHT SCATTERING
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUATERNARY COMPOUNDS
REFLECTIVITY
RUBIDIUM COMPOUNDS
SCATTERING
SUPERCONDUCTING FILMS
SURFACE PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE