Search for circular dichroism in high-Tc superconductors

K. B. Lyons, J. Kwo, J. F. Dillon, G. P. Espinosa, M. McGlashan-Powell, A. P. Ramirez, L. F. Schneemeyer

Research output: Contribution to journalArticlepeer-review

123 Scopus citations


We report observation of circular dichroism in reflection from various cuprate superconducting materials, including YBa2Cu2O7-x films, an etched YBa2Cu3O7 crystal, and a Bi2Sr2CaCu2O8 crystal. This signal develops as T is lowered below 200 K and exhibits little change near Tc. The exact onset temperatures differ for the various materials.

Original languageEnglish
Pages (from-to)2949-2952
Number of pages4
JournalPhysical Review Letters
Issue number24
StatePublished - 1990


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