Dynamical Nonlinearities in Piezoelectric Materials
| العنوان: | Dynamical Nonlinearities in Piezoelectric Materials |
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| المؤلفون: | Antti Lassila, Eira Seppälä, K. Ojasalo, Matti Sarjala, Antti Manninen, Mikko J. Alava, Virpi Korpelainen |
| المساهمون: | Scott, J.F., Gopalan, V., Okuyama, M., Bibes, M. |
| المصدر: | Scopus-Elsevier Seppälä, E, Korpelainen, V, Ojasalo, K, Sarjala, M, Alava, M, Lassila, A & Manninen, A 2007, Dynamical Nonlinearities in Piezoelectric Materials . in J F Scott, V Gopalan, M Okuyama & M Bibes (eds), Symposium K – Ferroelectrics, Multiferroics, and Magnetoelectrics . Materials Research Society, Materials Research Society Symposia Proceedings, vol. 1034-K04-11, pp. 14-19, 2007 MRS Fall Meeting, Boston, MA, United States, 26/11/07 . https://doi.org/10.1557/PROC-1034-K04-11 |
| بيانات النشر: | Springer Science and Business Media LLC, 2007. |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | Condensed Matter::Materials Science, Polarization density, Hysteresis, Materials science, Condensed matter physics, Electric field, PMUT, Ferroelectricity, Piezoelectricity, Laser Doppler vibrometer, Voltage |
| الوصف: | Dynamical nonlinearities in piezoelectric materials have been investigated over different time and frequency scales using four different methods; measurements of displacement and electric polarization of bulk material, measurements of nanometer scale surface structure of the material by an atomic force microscope (AFM), and numerical modelling of ferroelectric materials with quenched randomness. Laser vibrometer measurements of the deformations of piezoelectric materials, d31 type PZT and PMN-PT sheets, have been done under sinusoidal voltage loading with different frequencies. This yields information about the dynamical hysteresis behavior, such as the area of the hysteresis loops as a function of the applied frequency f and voltage amplitude. Similarly the hysteresis loops have been measured for the electric polarization of the same samples. Relaxation behaviors of the same materials have been measured by an AFM. Topography of the piezo sheets was measured after applied DC voltage, indicating slow collective changes in the polarization close and at the sample surface. To investigate the time-dependent hysteresis, we have studied numerically a Ginzburg-Landau-Devonshire (GLD) model for ferroelectric materials including dilution type quenched randomness. Quantities studied include the area of the hysteresis loop, of the polarization in the material, and the coercive electric field Ec as a function of the frequency f, both as a function of the disorder strength. |
| تدمد: | 1946-4274 0272-9172 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f879b84e1aad797232797f3750cc72a9 https://doi.org/10.1557/proc-1034-k04-11 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....f879b84e1aad797232797f3750cc72a9 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 19464274 02729172 |
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