Structures and local ferroelectric polarization switching properties of orthorhombic YFeO3 thin film prepared by a sol–gel method Project supported by the National Natural Science Foundation of China (Grant No. 61471301), Natural Science Basic Research Program of Shaanxi, China (Grant No. 2017JQ5083), and PhD Research Startup Foundation of Xi’an University of Science and Technology, China (Grant No. 2017QDJ044). |
(a) I–V characteristics of the YFO thin film on LSMO layer at room temperature; the inset on the left is the measurement chart and the inset on the right is I–V curve with logarithmic plots at positive bias and its fitting curve. (b) P–E characteristics of the YFO thin film at different frequencies. |