Ferroelectric-like hysteresis loop in nonferroelectric systems
Abstract
A ferroelectric-like hysteresis loop is obtained for a nonferroelectric system consisting of two back-to-back metal-semiconductor Schottky contacts with a large concentration of traps distributed over a finite thickness near the electrodes. The presented results show that a simple hysteresis loop measured at a single frequency is not always solid evidence of ferroelectricity in low-dimensional structures such as thin films or nanoscale structures.
- Publication:
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Applied Physics Letters
- Pub Date:
- September 2005
- DOI:
- Bibcode:
- 2005ApPhL..87k2903P
- Keywords:
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- 77.80.Dj;
- 73.40.Ns;
- Domain structure;
- hysteresis;
- Metal-nonmetal contacts