JOURNAL ARTICLE
Theory of Ferroelectric Transition in K1-xNaxTaO3
Year: 1990 Journal: Progress of Theoretical Physics Vol: 84 (1)Pages: 32-35 Publisher: Oxford University Press
Abstract
A possible explanation is given for the ferroelectricity in mixed crystals K1-xNaxTaO3 for 0.05≪x≪0.72. In the mixed state the energy gap between valence and conduction bands becomes narrower due to disorderness. This gives rise to a phase transition through a large cancellation in the ferroelectric soft mode.
Keywords:
Ferroelectricity Physics Condensed matter physics Soft modes Valence (chemistry) Phase transition Quantum mechanics
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Acoustic Wave Resonator Technologies
Physical Sciences → Engineering → Biomedical Engineering
Solid-state spectroscopy and crystallography
Physical Sciences → Materials Science → Materials Chemistry
Glass properties and applications
Physical Sciences → Materials Science → Ceramics and Composites
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