Abstract
Our experimental data show that a rather thin layer with inverted polarization at the +c-face strongly suppresses the pyroelectrically induced electron emission from LiNbO3 crystals. We assume that the microscopic electric field of pyroelectric positive surface charges increases a potential barrier to polarons moving toward the vacuum. The pyroelectrically induced electron emission provides a novel method of detecting thin surface layers with inverted polarization.
| Original language | English |
|---|---|
| Pages (from-to) | 2813-2815 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 68 |
| Issue number | 20 |
| DOIs | |
| State | Published - 1996 |