Uniaxial stress-induced ferroelectric depolarization in -oriented 0.72Pb(Mg1/3Nb2/3)O3-0.28PbTiO3 single crystal
作者： A'Xi Xue , Cong Fang , Cong Wang , Zheng Wu , Yanmin Jia
DOI: 10.1016/J.JALLCOM.2015.05.130
关键词: Crystallography 、 Single crystal 、 Compressive strength 、 Coercivity 、 Computer simulation 、 Ferroelectricity 、 Strain engineering 、 Depolarization 、 Condensed matter physics 、 Materials science 、 Polarization (waves)
摘要: Abstract It is experimentally and theoretically found that the uniaxial compressive stress ( σ ) can lead to decrease of both ferroelectric remanent polarization P r coercive field E c -oriented 0.72Pb(Mg 1/3 Nb 2/3 )O 3 -0.28PbTiO crystal. With increase from 0 to −15 MPa at 50 °C, decreases 20.69 μC/cm 2 17.30 μC/cm 2.19 kV/cm 1.89 kV/cm, respectively. A numerical simulation based on a phenomenological Landau-Khalatnikov theory used plot hysteresis loop under . The result agrees with experimental observation very well. research useful for application devices in strain engineering.
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