Abstract
The chain oxygen dynamics of YBa2Cu3O7-x have been investigated using a Monte Carlo simulation of the asymmetric next-nearest-neighbor Ising model for the oxygen atoms in the basal plane. The effect of an electric field is to change the basal plane coordination of Cu ions, resulting in a change in the carrier doping of the CuO2 planes. The ratio of magnitudes of the changes in the doping under potentials of +10 V and -10 V is in good agreement in magnitude and sign with that observed in field effect experiments, as are also the time constants for the resistance changes.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1079-1082 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 71 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1993 |