An in situ diffraction study of domain wall motion contributions to the frequency dispersion of the piezoelectric coefficient in lead zirconate titanate
| Autor: | Shruti B. Seshadri, Anderson D. Prewitt, Dragan Damjanovic, Andrew J Studer, Jacob L. Jones |
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| Rok vydání: | 2013 |
| Předmět: |
Diffraction
Materials science Piezoelectric coefficient Physics and Astronomy (miscellaneous) Condensed matter physics Orders of magnitude (temperature) Ferroelectric ceramics Neutron diffraction Lead zirconate titanate chemistry.chemical_compound Domain wall (magnetism) Nuclear magnetic resonance chemistry Electric field |
| Zdroj: | Applied Physics Letters. 102:042911 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.4789903 |
| Popis: | The contribution of non-180° domain wall displacement to the frequency dependence of the longitudinal piezoelectric coefficient has been determined experimentally in lead zirconate titanate using time-resolved, in situ neutron diffraction. Under subcoercive electric fields of low frequencies, approximately 3% to 4% of the volume fraction of non-180° domains parallel to the field experienced polarization reorientation. This subtle non-180° domain wall motion directly contributes to 64% to 75% of the magnitude of the piezoelectric coefficient. Moreover, part of the 33 pm/V decrease in piezoelectric coefficient across 2 orders of magnitude in frequency is quantitatively attributed to non-180° domain wall motion effects. |
| Databáze: | OpenAIRE |
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