TY - JOUR

T1 - Domain patterning in nonpolar cut PMN–PT by focused ion beam

AU - Pashnina, Elena

AU - Chezganov, Dmitry

AU - Slautina, Alla

AU - Turygin, Anton

AU - Ushakov, Andrei

AU - Hu, Qingyuan

AU - Liu, Xin

AU - Xu, Zhuo

AU - Wei, Xiaoyong

AU - Shur, Vladimir

PY - 2024/4/1

Y1 - 2024/4/1

N2 - The formation of the ferroelectric domain structure as a result of irradiation by focused ion beam of [100]-cut 0.61Pb (Mg1/3Nb2/3)O3-0.39PbTiO3 (PMN-PT) single crystals covered by surface artificial dielectric layer and with free surface was investigated. The dot irradiation resulted in formation of the wedge-like domains grown along [00-1] direction. For irradiation of the free surface, the domains are mainly located under the surface, while at the irradiated surface with an artificial dielectric layer the domains are located at the surface. It was shown that the subsurface wedge-shaped part of the domain is unstable and completely disappears after a month due to spontaneous backswitching under the action of the residual depolarization field. The revealed nonlinear dose dependence of the domain sizes was attributed to the distribution of the electric field using the point charge model. The domain interaction for the distance between irradiated dots below 30 μm has been revealed in all samples. It was shown that the decrease of the distance between irradiated dots in the created domain row leads to an increase in the length of the central domains, which is explained by the contribution of all injected charges to the switching field.

AB - The formation of the ferroelectric domain structure as a result of irradiation by focused ion beam of [100]-cut 0.61Pb (Mg1/3Nb2/3)O3-0.39PbTiO3 (PMN-PT) single crystals covered by surface artificial dielectric layer and with free surface was investigated. The dot irradiation resulted in formation of the wedge-like domains grown along [00-1] direction. For irradiation of the free surface, the domains are mainly located under the surface, while at the irradiated surface with an artificial dielectric layer the domains are located at the surface. It was shown that the subsurface wedge-shaped part of the domain is unstable and completely disappears after a month due to spontaneous backswitching under the action of the residual depolarization field. The revealed nonlinear dose dependence of the domain sizes was attributed to the distribution of the electric field using the point charge model. The domain interaction for the distance between irradiated dots below 30 μm has been revealed in all samples. It was shown that the decrease of the distance between irradiated dots in the created domain row leads to an increase in the length of the central domains, which is explained by the contribution of all injected charges to the switching field.

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U2 - 10.1142/S2010135X23500248

DO - 10.1142/S2010135X23500248

M3 - Article

VL - 14

JO - Journal of Advanced Dielectrics

JF - Journal of Advanced Dielectrics

SN - 2010-135X

IS - 02

M1 - 2350024

ER -