title: High resolution quantitative piezoresponse force microscopy of BiFeO3 nanofibers with dramatically enhanced sensitivity.
abstract: Piezoresponse force microscopy (PFM) has emerged as the tool of choice for characterizing piezoelectricity and ferroelectricity of low-dimensional nanostructures, yet quantitative analysis of such low-dimensional ferroelectrics is extremely challenging. In this communication, we report a dual frequency resonance tracking technique to probe nanocrystalline BiFeO(3) nanofibers with substantially enhanced piezoresponse sensitivity, while simultaneously determining its piezoelectric coefficient quantitatively and correlating quality factor mappings with dissipative domain switching processes. This technique can be applied to probe the piezoelectricity and ferroelectricity of a wide range of low-dimensional nanostructures or materials with extremely small piezoelectric effects.
authors.affiliation: Faculty of Materials, Optoelectronics and Physics, and Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Xiangtan, Hunan 411105, China.
authors.forename: Shuhong
authors.initials: S
authors.lastname: Xie
authors.forename: Anil
authors.initials: A
authors.lastname: Gannepalli
authors.forename: Qian Nataly
authors.initials: QN
authors.lastname: Chen
authors.forename: Yuanming
authors.initials: Y
authors.lastname: Liu
authors.forename: Yichun
authors.initials: Y
authors.lastname: Zhou
authors.forename: Roger
authors.initials: R
authors.lastname: Proksch
authors.forename: Jiangyu
authors.initials: J
authors.lastname: Li
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D055119:Elastic Modulus; D005290:Ferric Compounds / Q000737:chemistry*; D008422:Materials Testing / Q000379:methods*; D055617:Micro-Electrical-Mechanical Systems / Q000379:methods*; D018625:Microscopy, Atomic Force / Q000379:methods*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012680:Sensitivity and Specificity; D013718:Tensile Strength
chemical_list: D005290:Ferric Compounds; C000499:ferric oxide; C033301:bismuth oxide; D001729:Bismuth