Son Jong Yeog, Lee Geunhee, Jo Moon-Ho, Kim Hyungjun, Jang Hyun M, Shin Young-Han
Department of Materials Science and Engineering and Division of Advanced Materials Science, Pohang University of Science and Technology, Pohang, Korea.
J Am Chem Soc. 2009 Jun 24;131(24):8386-7. doi: 10.1021/ja903133n.
We investigated the ferroelectric characteristics of an epitaxial perovskite ZnSnO(3) thin film on a (111) SrRuO(3)/(111) SrTiO(3) substrate fabricated by pulsed laser deposition. We confirmed that the ZnSnO(3) thin film was epitaxially grown on the substrate, forming large terraces on the surface of the ZnSnO(3) thin film. The ZnSnO(3) thin film exhibited a high ferroelectric polarization of approximately 47 microC/cm(2), which was further supported by first-principles calculations.
我们研究了通过脉冲激光沉积法在(111) SrRuO(3)/(111) SrTiO(3)衬底上制备的外延钙钛矿ZnSnO(3)薄膜的铁电特性。我们证实ZnSnO(3)薄膜在衬底上外延生长,在ZnSnO(3)薄膜表面形成了大的平台。ZnSnO(3)薄膜表现出约47微库仑/平方厘米的高铁电极化,这得到了第一性原理计算的进一步支持。