Spontaneous Polarization and Domain Reversal in New Ferroelectric LaBGeO 5
Autor: | Boris A. Strukov, V. N. Milov, E. V. Milov |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Ferroelectrics. 269:15-20 |
ISSN: | 1563-5112 0015-0193 |
Popis: | We obtained the temperature dependence of a pyroelectric current and spontaneous polarization in a single-domain state of the ferroelectric LaBGeO 5 (LBGO) (Tc=532°C). Hystresis loops, the temperature dependence of a coercive field were obtained for frequencies 0.05-1 Hz. It is shown that the coercive field increases exponentially with the lowering of a temperature and is about 150 kV/cm at room temperature and 0.1 Hz. Polarization change and switching characteristics were obtained under a step field. |
Databáze: | OpenAIRE |
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