Results 41 to 50 of about 34,688 (257)

Thermodynamic theory of epitaxial ferroelectric thin films with dense domain structures [PDF]

, 2001
A Landau-Ginsburg-Devonshire-type nonlinear phenomenological theory is presented, which enables the thermodynamic description of dense laminar polydomain states in epitaxial ferroelectric thin films.
A. E. M. De Veirman, A. E. Romanov, A. E. Romanov, A. E. Romanov, A. J. Bell, A. K. Tagantsev, A. L. Roitburd, A. L. Roytburd, A. L. Roytburd, A. L. Roytburd, A. L. Roytburd, A. Seifert, A. Yu. Emelyanov, B. S. Kwak, B. S. Kwak, C. M. Foster, C. M. Foster, C. S. Ganpule, D. H. Chen, E. A. N. Love, F. Jona, J. Lettieri, J. P. Hirth, J. S. Speck, J. S. Speck, J. S. Speck, K. S. Lee, L. D. Landau, M. J. Haun, M. J. Nystrom, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. A. Pertsev, N. Setter, O. Auciello, R. Ramesh, R. Waser, S. Kim, S. P. Alpay, S. P. Alpay, S. Stemmer, V. G. Koukhar, V. Gopalan, W. Pompe, W.-Y. Hsu, Y. Gao, Y. M. Kang, Y. Watanabe   +55 more
core   +1 more source

Theoretical Model Construction of Piezoelectric Coefficient of PbTiO₃ Nanoparticles

Chemical Engineering Transactions, 2017
This paper aims to explain the size dependence of piezoelectric coefficient d33(D) of PbTiO3 nanoparticles. For this purpose, a theoretical model was created for the size-dependent piezoelectric coefficient, considering the Curie temperature for small ...
Shuai Zhang, Lei Chen
doaj   +1 more source

Diamide derivatives containing a trifluoromethylpyridine skeleton: Design, synthesis, and insecticidal activity

Journal of Integrative Agriculture, 2022
Diamide derivatives are biologically active molecules that have been widely applied in recent years in research on pesticides, especially insecticides. Using a simple and environmentally friendly scheme, a series of new diamide derivatives containing a ...
Fang-zhou XU, Yan-yan WANG, Sheng-xin GUO, A-li DAI, Jian WU   +4 more
doaj   +1 more source

Optimal configuration of microstructure in ferroelectric materials by stochastic optimization

, 2010
An optimization procedure determining the ideal configuration at the microstructural level of ferroelectric (FE) materials is applied to maximize piezoelectricity.
Goldstein H., H. C. Rodrigues, J. M. Guedes, K. P. Jayachandran, Lines M. E., Nye J. F., Pecharsky V. K., Uchino K.   +7 more
core   +1 more source

Piezoelectric properties of polyamide 11/NaNbO3nanowire composites [PDF]

, 2012
Polyamide 11(PA 11)/sodium niobate nanowire (NW) 0–3 composites with different volume fractions of NWs were synthesized. The electric polarization (P) was measured as a function of the applied electric field (E).
Capsal, Jean-Fabien, Dantras, Eric, David, Charlotte, Lacabanne, Colette, Laffont-Dantras, Lydia   +4 more
core   +4 more sources

A composite approach boosts transduction coefficients of piezoceramics for energy harvesting

AIP Advances, 2018
Piezoelectric energy harvesting is a hotspot in the field of new energy, the core goal of which is to prepare piezoceramics with a high transduction coefficient (d33×g33).
Xiaole Yu, Yudong Hou, Mupeng Zheng, Haiyan Zhao, Mankang Zhu   +4 more
doaj   +1 more source

J/\psi dissociation cross sections in a relativistic quark model

, 2003
We calculate the amplitudes and the cross sections of the charm dissociation processes J/\psi \pi => D \bar D, D* \bar D, D \bar D*, D* \bar D* within a relativistic constituent quark model.
Ivanov, Mikhail A., Korner, Juergen G., Santorelli, Pietro   +2 more
core   +1 more source

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan, Xiaodong Sun, Kailai Zhang, Shuai Zhang, Haijun Hu, Hui Li, Zhenglong Li, Hongwei Huang, Liqun Ye, Jiyang Li, Yunling Liu, Hongge Pan, Tianyi Ma   +12 more
wiley   +1 more source

Magnetomechanical performance of directionally solidified Fe-Ga alloys [PDF]

, 2007
Iron-gallium alloys can produce magnetostrictions of ~400 ppm and might serve as mechanically robust actuator/sensing materials. However, for polycrystalline Fe-Ga alloys, the magnetostrictive performance decreases with the increasing deviations from the
Lord, DG, Mellors, NJ, Zhao, X
core   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source