Abstract
Light-induced domain reversal of near-stoichiometric Mg-doped LiNbO(3) crystal was investigated with a focused 532 nm continuous laser beam. The lowest electric field applied to accomplish domain nucleation is only 30 V/mm and 1/80 of the coercive field, which is safe and convenient for us to fabricate domain structures. Under this superlow applied field, the pinning effect of domain wall is so obvious that the inverted domain reveals a gear shape contrary to the hexagon in a higher applied field. Then two-dimensional domain patterns with the smallest domain size of 4 mu m have been fabricated.
Original language | English |
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Article number | 063514 |
Number of pages | 4 |
Journal | Journal of Applied Physics |
Volume | 107 |
Issue number | 6 |
DOIs | |
Publication status | Published - 15 Mar 2010 |
Externally published | Yes |
Publication type | A1 Journal article-refereed |
Keywords
- electric domain walls
- ferroelectric materials
- laser beam effects
- lithium compounds
- magnesium
- nucleation
- LINBO3
- INVERSION
- DEFECTS
- WALL