Results overview: Found 4 records in 0.02 seconds.
Articles, 4 records found
Articles 4 records found  
1.
14 p, 1.0 MB Flexoelectricity in bones / Vasquez-Sancho, Fabián (Institut Català de Nanociència i Nanotecnologia) ; Abdollahi, Amir (Universitat Politècnica de Catalunya. Laboratori de Càlcul Numèric) ; Damjanovic, Dragan (Ecole Politechnique Federale de Lausanne) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Bones generate electricity under pressure, and this electromechanical behavior is thought to be essential for bone's self-repair and remodeling properties. The origin of this response is attributed to the piezoelectricity of collagen, which is the main structural protein of bones. [...]
2018 - 10.1002/adma.201705316
Advanced materials, Vol. 30, issue 9 (March 2018) , art. 1705316  
2.
7 p, 2.4 MB Flexoelectric MEMS : Towards an electromechanical strain diode / Bhaskar, Umesh K. (Institut Català de Nanociència i Nanotecnologia) ; Banerjee, N. (University of Twente) ; Abdollahi, Amir (Institut Català de Nanociència i Nanotecnologia) ; Solanas, E. (Lyncée Tec SA) ; Rijnders, G. (University of Twente) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Piezoelectricity and flexoelectricity are two independent but not incompatible forms of electromechanical response exhibited by nanoscale ferroelectrics. Here, we show that flexoelectricity can either enhance or suppress the piezoelectric response of the cantilever depending on the ferroelectric polarity and lead to a diode-like asymmetric (two-state) electromechanical response.
2016 - 10.1039/c5nr06514c
Nanoscale, Vol. 8, Issue 3 (January 2016) , p. 1293-1298  
3.
6 p, 937.0 KB Converse flexoelectricity yields large piezoresponse force microscopy signals in non-piezoelectric materials / Abdollahi, Amir (Universitat Politècnica de Catalunya) ; Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ; Arias, Irene (Universitat Politècnica de Catalunya) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Converse flexoelectricity is a mechanical stress induced by an electric polarization gradient. It can appear in any material, irrespective of symmetry, whenever there is an inhomogeneous electric field distribution. [...]
2019 - 10.1038/s41467-019-09266-y
Nature communications, Vol. 10 (March 2019) , art. 1266  
4.
22 p, 2.4 MB Ferroelectrics as smart mechanical materials / Cordero Edwards, Rohini Kumara (Institut Català de Nanociència i Nanotecnologia) ; Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ; Abdollahi, Amir (Universitat Politècnica de Catalunya. Laboratori de Càlcul Numèric) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
The mechanical properties of materials are insensitive to space inversion, even when they are crystallographically asymmetric. In practice, this means that turning a piezoelectric crystal upside down or switching the polarization of a ferroelectric should not change its mechanical response. [...]
2017 - 10.1002/adma.201702210
Advanced materials, Vol. 29, issue 37 (Oct. 2017) , art. 1702210  

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