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Search for circular dichroism in high- T sub c superconductors

Journal Article · · Physical Review Letters; (USA)

We report observation of circular dichroism in reflection from various cuprate superconducting materials, including YBa{sub 2}Cu{sub 2}O{sub 7{minus}{ital x}} films, an etched YBa{sub 2}Cu{sub 3}O{sub 7} crystal, and a Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} crystal. This signal develops as {ital T} is lowered below 200 K and exhibits little change near {ital T}{sub {ital c}}. The exact onset temperatures differ for the various materials.

OSTI ID:
6827698
Journal Information:
Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:24; ISSN PRLTA; ISSN 0031-9007
Country of Publication:
United States
Language:
English