Details

Autor(en) / Beteiligte

• Xue, A'Xi
• Fang, Cong
• Wang, Cong
• Wu, Zheng
• Jia, Yanmin
• Liu, Yongsheng
• Luo, Haosu

Titel

Uniaxial stress-induced ferroelectric depolarization in -oriented 0.72Pb(Mg1/3Nb2/3)O3-0.28PbTiO3 single crystal

Ist Teil von

• Journal of alloys and compounds, 2015-10, Vol.647, p.14-17

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2015

Quelle

Access via ScienceDirect (Elsevier)

Beschreibungen/Notizen

• It is experimentally and theoretically found that the uniaxial compressive stress (σ) can lead to the decrease of both the ferroelectric remanent polarization (Pr) and the coercive field (Ec) of -oriented 0.72Pb(Mg1/3Nb2/3)O3-0.28PbTiO3 crystal. With the increase of σ from 0 to −15 MPa at 50 °C, Pr decreases from 20.69 μC/cm2 to 17.30 μC/cm2 and Ec decreases from 2.19 kV/cm to 1.89 kV/cm, respectively. A numerical simulation based on a phenomenological Landau-Khalatnikov theory is used to plot the polarization hysteresis loop under σ. The result of numerical simulation agrees with the experimental observation very well. The research is useful for the application of ferroelectric devices in strain engineering. •Stress-induced ferroelectric depolarization was experimentally observed.•A theoretical analysis was done to simulate the ferroelectric loop under stress.•The result is useful for application of ferroelectric devices in stress environment.