نتایج جستجو برای: piezo flexoelectricity

تعداد نتایج: 2192  

Journal: :Journal of Scientific Research and Reports 2020

Journal: :Journal of Magnetism and Magnetic Materials 2015

Journal: :International Journal of Engineering Science 2020

Journal: :Journal of Applied Physics 2022

Quantum well (QW) structures are formed in nanometer-thickness-scale semiconductors with different bandgaps sandwiched configurations and can offer a wide variety of advantages as active layers for optoelectronic devices, e.g., laser diodes, light emit photodetectors, solar cells. Due to the non-centrosymmetric crystal structure, third-generation semiconductor, such ZnO, AlN, GaN, InN, generate...

Journal: :Physical review 2021

The noncentrosymmetric nature of single-layer (SL) transition-metal dichalcogenides (TMD) manifests itself in the finite piezoelectricity and valley-Zeeman coupling. We microscopically model nonlinear exciton transport nanobubbles SL TMDs. Thanks to giant piezoelectric effect, we obtain an enormous internal electric field, ${E}_{\mathrm{piezo}}\ensuremath{\sim}{10}^{7}\phantom{\rule{0.16em}{0ex...

Journal: :Physical review letters 2011
D Lee A Yoon S Y Jang J-G Yoon J-S Chung M Kim J F Scott T W Noh

We report on nanoscale strain gradients in ferroelectric HoMnO(3) epitaxial thin films, resulting in a giant flexoelectric effect. Using grazing-incidence in-plane x-ray diffraction, we measured strain gradients in the films, which were 6 or 7 orders of magnitude larger than typical values reported for bulk oxides. The combination of transmission electron microscopy, electrical measurements, an...

2016
Elisabetta Sassaroli Natalia Vykhodtseva

We present here biophysical models to gain deeper insights into how an acoustic stimulus might influence or modulate neuronal activity. There is clear evidence that neural activity is not only associated with electrical and chemical changes but that an electro-mechanical coupling is also involved. Currently, there is no theory that unifies the electrical, chemical, and mechanical aspects of neu...

Journal: :Mühendislik Bilimleri ve Tasarım Dergisi 2019

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