Temperature dependences of ferroelectricity and resistive switching behavior of epitaxial BiFeO3 thin films
Lu Zeng-Xinga), Song Xiaoa), Zhao Li-Naa), Li Zhong-Wena), Lin Yuan-Bina), Zeng Mina), Zhang Zhanga), Lu Xu-Binga), Wu Su-Juana), Gao Xing-Sen†a), Yan Zhi-Bob), Liu Jun-Ming‡b)
       
I – V curves as a function of temperature, which are plotted by logarithmically scaling the fitting relation I ∝ V n , for (a) LRS (upwards polarization state) and (b) HRS (downward polarization state). SCLC refers to the case of n ∼ 2; Ohmic conduction is denoted as n ∼ 1; OCV stands for open circuit voltage.