Simulations of polarization reversals by a two-dimensional lattice model

Simulations of step-type and pulse responses have been performed using a two-dimensional lattice model in ferroelectrics in which latent nuclei are randomly distributed. Polarization and current responses under the step-type applied field and the narrow applied pulse field shorter than switching tim...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 31; no. 9B; pp. 3238 - 3240
Main Authors OMURA, M, ADACHI, H, ISHIBASHI, Y
Format Conference Proceeding Journal Article
LanguageEnglish
Published Tokyo Japanese journal of applied physics 01.09.1992
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Physics
Polarization and depolarization
Electric field
Ferroelectric materials
Nanosecond
Lattice model
Electrical polarization
Theoretical study
Inversion
Two dimensional model
Impulse
Time variation
Switching
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Summary:Simulations of step-type and pulse responses have been performed using a two-dimensional lattice model in ferroelectrics in which latent nuclei are randomly distributed. Polarization and current responses under the step-type applied field and the narrow applied pulse field shorter than switching time t sw are described. The critical pulse width t * , for which the system returns to the initial polarization state after the narrow applied pulse field is removed, is obtained, and it is found that the value of t * depends on the applied field and the interaction between neighboring dipole moments.
ISSN:0021-4922
1347-4065
DOI:10.1143/jjap.31.3238