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