TY - JOUR
T1 - Ferroelectric Polarization Switching Dynamics and Domain Growth of Triglycine Sulfate and Imidazolium Perchlorate
AU - Ma, He
AU - Gao, Wenxiu
AU - Wang, Junling
AU - Wu, Tao
AU - Yuan, Guoliang
AU - Liu, Junming
AU - Liu, Zhiguo
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The work is supported by the National Natural Science Foundation of China (11134004, 11234005, and 51472118), and a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions. J. W. acknowledges support from National Research Foundation of Singapore under project NRF-CRP5-2009-04. The authors also thank Prof. Ren-Gen Xiong from Southeast University, Nanjing, China for providing all ferroelectric crystals.
PY - 2016/4/8
Y1 - 2016/4/8
N2 - The weak bond energy and large anisotropic domain wall energy induce many special characteristics of the domain nucleation, growth, and polarization switch in triglycine sulfate (TGS) and imidazolium perchlorate (IM), two typical molecular ferroelectrics. Their domain nucleation and polarization switch are rather slower than those of conventional oxide ferroelectrics, which may be due to the weaker bond energy of hydrogen bond or van der Waals bond than that of ionic bond. These chemical bonds dominate the elastic energy, with the latter being an important component of domain wall energy and playing an important role in domain nucleation and domain growth. The ratio of anisotropic domain wall energy to Gibbs free energy is large in TGS and IM, which allows a favorable domain shape and a special domain evolution under a certain electric field. Therefore, this study not only sheds light on the physical nature but also indicates the application direction for molecular ferroelectrics. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
AB - The weak bond energy and large anisotropic domain wall energy induce many special characteristics of the domain nucleation, growth, and polarization switch in triglycine sulfate (TGS) and imidazolium perchlorate (IM), two typical molecular ferroelectrics. Their domain nucleation and polarization switch are rather slower than those of conventional oxide ferroelectrics, which may be due to the weaker bond energy of hydrogen bond or van der Waals bond than that of ionic bond. These chemical bonds dominate the elastic energy, with the latter being an important component of domain wall energy and playing an important role in domain nucleation and domain growth. The ratio of anisotropic domain wall energy to Gibbs free energy is large in TGS and IM, which allows a favorable domain shape and a special domain evolution under a certain electric field. Therefore, this study not only sheds light on the physical nature but also indicates the application direction for molecular ferroelectrics. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
UR - http://hdl.handle.net/10754/621546
UR - http://doi.wiley.com/10.1002/aelm.201600038
UR - http://www.scopus.com/inward/record.url?scp=84975041402&partnerID=8YFLogxK
U2 - 10.1002/aelm.201600038
DO - 10.1002/aelm.201600038
M3 - Article
SN - 2199-160X
VL - 2
SP - 1600038
JO - Advanced Electronic Materials
JF - Advanced Electronic Materials
IS - 6
ER -