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	Analytical method to determine flexoelectric coupling coefficient at nanoscale
	Zhou, Hao ; Pei, Yongmao ; Hong, Jiawang ; Fang, Daining
刊名	APPLIED PHYSICS LETTERS
	2016
关键词	FERROELECTRIC THIN-FILMS STRAIN GRADIENTS ELASTIC-MODULUS ELECTRIC-FIELD POLARIZATION INDENTATION HARDNESS SOLIDS
DOI	10.1063/1.4943660
英文摘要	Flexoelectricity is defined as the coupling between the strain gradient and polarization, which is expected to be remarkable at nanoscale. However, measuring the flexoelectricity at nanoscale is challenging. In the present work, an analytical method for measuring the flexoelectric coupling coefficient based on nanocompression technique is proposed. It is found that the flexoelectricity can induce stiffness softening of the dielectric nano-cone-frustum. This phenomenon becomes more significant when the sample size decreases or the half cone angle increases. This method avoids measuring the electric polarization or current at nanoscale with dynamical loading, which can be beneficial to the flexoelectric measurement at nanoscale and design of flexoelectric nanodevices. (C) 2016 AIP Publishing LLC.; National Natural Science Foundation of China [11572040]; National Programs for Scientific Instruments Research and Development of China [2012YQ03007502]; Beijing NOVA Program [Z151100000315041]; SCI(E); EI; ARTICLE; peiym@pku.edu.cn; hongjw04@gmail.com; 10; 108
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437556]
专题	工学院
推荐引用方式 GB/T 7714	Zhou, Hao,Pei, Yongmao,Hong, Jiawang,et al. Analytical method to determine flexoelectric coupling coefficient at nanoscale[J]. APPLIED PHYSICS LETTERS,2016.
APA	Zhou, Hao,Pei, Yongmao,Hong, Jiawang,&Fang, Daining.(2016).Analytical method to determine flexoelectric coupling coefficient at nanoscale.APPLIED PHYSICS LETTERS.
MLA	Zhou, Hao,et al."Analytical method to determine flexoelectric coupling coefficient at nanoscale".APPLIED PHYSICS LETTERS (2016).

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