Abstract
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 language | English |
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Pages (from-to) | 2949-2952 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 64 |
Issue number | 24 |
DOIs | |
State | Published - 1990 |