Direct piezoelectric properties of (100) and (111) BiFeO3 epitaxial thin films

作者：Ujimoto K; Yoshimura T^*; Ashida A; Fujimura N

来源：Applied Physics Letters, 2012, 100(10): 102901.

DOI：10.1063/1.3692579

The direct piezoelectric properties of BiFeO3 epitaxial thin films with different crystal orientation were investigated. Epitaxial films of (100) and (111) rhombohedral BiFeO3 fabricated using pulsed laser deposition showed rectangular hysteresis loops with remanent polarizations of 54 and 83 mu C/cm(2), respectively. Effective transverse piezoelectric coefficients (e(31,f)) of 3.5 and 1.3C/m(2) were obtained, for (100) and (111) films, respectively. Results suggest that the strong direct piezoelectric response of the (100) rhombohedral film results from the effects of the engineered-domain configuration.

• 出版日期2012-3-5