Physical reality of the Preisach model for organic ferroelectrics.
Physical reality of the Preisach model for organic ferroelectrics.
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DOI：
10.1038/s41467-018-06717-w
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发表时间：
2018-10-23
影响因子：
16.6
通讯作者：
Kemerink M
中科院分区：
文献类型：
--
作者：
Urbanavičiūtė I;Cornelissen TD;Meng X;Sijbesma RP;Kemerink M
The Preisach model has been a cornerstone in the fields of ferromagnetism and ferroelectricity since its inception. It describes a real, non-ideal, ferroic material as the sum of a distribution of ideal ‘hysterons’. However, the physical reality of the model in ferroelectrics has been hard to establish. Here, we experimentally determine the Preisach (hysteron) distribution for two ferroelectric systems and show how its broadening directly relates to the materials’ morphology. We connect the Preisach distribution to measured microscopic switching kinetics that underlay the macroscopic dispersive switching kinetics as commonly observed for practical ferroelectrics. The presented results reveal that the in principle mathematical construct of the Preisach model has a strong physical basis and is a powerful tool to explain polarization switching at all time scales in different types of ferroelectrics. These insights lead to guidelines for further advancement of the ferroelectric materials both for conventional and multi-bit data storage applications. Though the Preisach model successfully describes hysteretic switching in ferroelectrics, the physical reality of the model remains elusive. Here, the authors explained the origin of the experimental Preisach distribution and its effect on switching kinetics and materials’ potential applications
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影响因子：
--
作者：
FATUZZO, E
通讯作者：
FATUZZO, E
影响因子：
3.2
作者：
Guo, S.;Ovchinnikov, O. S.;Kalinin, S. V.
通讯作者：
Kalinin, S. V.
影响因子：
1.6
作者：
Cima, L;Laboure, E;Muralt, P
通讯作者：
Muralt, P
影响因子：
17.1
作者：
Kim, Yunseok;Kumar, Amit;Kalinin, Sergei V.
通讯作者：
Kalinin, Sergei V.
影响因子：
3.2
作者：
Lohse, O;Grossmann, M;Waser, R
通讯作者：
Waser, R