Results 91 to 100 of about 11,585 (198)

High-frequency electron paramagnetic resonance investigation of the Fe3+ impurity center in polycrystalline PbTiO3 in its ferroelectric phase

, 2004
The intrinsic iron(III) impurity center in polycrystalline lead titanate was investigated by means of high-frequency electron paramagnetic resonance (EPR) spectroscopy in order to determine the local-environment sensitive fine structure parameter D. At a
Brunel, Louis Claude, Dinse, Klaus-P., Eichel, Ruediger-A., Mestric, Hrvoje, Ozarowski, Andrew, van Tol, Johan   +5 more
core   +1 more source

In‐Wheel Piezoelectric DC Power Generator With Zero Resistive Torque

Advanced Science, Volume 13, Issue 18, 27 March 2026.
In this paper, we present a wheel‐shaped direct‐current piezoelectric generator (DC‐PG) that fundamentally overcomes these constraints by producing phase‐stable DC electricity directly from rolling motion. By embedding this system into suitcase wheels, we demonstrated a fully integrated real‐time location tracking system powered solely by mechanical ...
Hyun Soo Kim, Hyunseok Song, In Woo Oh, Dong‐Gyu Lee, Tae Kyoung Yoon, Jeyeon Lee, Byoung Jin Yoon, So‐Min Song, Iman M. Imani, Seohyun Cho, Seong Jin Kim, Chong‐Yun Kang, Sahn Nahm, Yong Seok Park, Kyung‐Hoon Cho, Jungho Ryu, Jeong Min Baik, Jun Chen, Sunghoon Hur, Hyun‐Cheol Song   +19 more
wiley   +1 more source

Polarization rotation associated critical phenomena in epitaxial PbTiO3 thin films near room temperature

AIP Advances, 2016
Strain-driven and temperature-driven monoclinic-orthorhombic phase transition in epitaxial PbTiO3 exhibit similar behavior under electric field, i.e., polarization discontinuity is reduced at the first-order ferroelectric-ferroelectric transition whose ...
Wenhui Ma
doaj   +1 more source

Optimization of seed layer of PbTiO3/PbZr0.3Ti0.7O3/PbTiO3 sandwich structure ferroelectric thin film

Acta Physica Sinica, 2008
The PT/PZT/PT and PZT thin films were prepared by sol-gel method. Different Pb content (x) (x=0, 005, 010, 015, 020) were added in excess to the PT precursor to optimize PT seed layer. The XRD and AFM results show that the crystalline phase and microstructure of the films were greatly affected by the excess Pb content (x) in PT layers.
null Wang Long-Hai, null Yu Jun, null Wang Yun-Bo, null Gao Jun-Xiong, null Zhao Su-Ling   +4 more
openaire   +1 more source

Synergistically boosting charge separation and surface activity for efficient solar-powered cathodic metal protection

Carbon Neutrality
The escalating global energy demand has spurred the emergence of diverse solar-powered systems. As a typical example, photocathodic protection (PCP) is a promising technology to prevent metal corrosion via a “solar-electric-chemical” energy conversion ...
Hui Xie, Guangyao Nie, Yuchen Fang, Weihua Li, Shihe Yang, Fa-Qian Liu, Zheng Xing   +6 more
doaj   +1 more source

Manipulating topological transformations of polar structures through real-time observation of the dynamic polarization evolution

Nature Communications, 2019
Direct observation of the dynamic evolution of polar domain structures at atomic level remains challenging. Here, the authors report the observation of real-time topological transformations of polar structures in PbTiO3/SrTiO3 multilayers.
K. Du, M. Zhang, C. Dai, Z. N. Zhou, Y. W. Xie, Z. H. Ren, H. Tian, L. Q. Chen, Gustaaf Van Tendeloo, Z. Zhang   +9 more
doaj   +1 more source

Evidence for anisotropic polar nanoregions in relaxor PMN: A neutron study of the elastic constants and anomalous TA phonon damping

, 2012
We use neutron scattering to characterize the acoustic phonons in the relaxor PMN and demonstrate the presence of an anisotropic damping mechanism directly related to short-range, polar correlations.
A. Bosak, C. Stock, D. Viehland, G. A. Smolenskii, G. Burns, G. Shirane, G. Xu, G. Xu, Guangyong Xu, H. Hiraka, H. Luo, I. Swainson, J.-F. Li, M. T. Dove, O. Delaire, P. M. Gehring, R. A. Cowley, S. B. Vakhrushev, S. E. Park, S. Kamba, Z.-G. Ye   +20 more
core   +1 more source

Comportamento térmico do PbTiO3 modificado por terras raras Thermal behavior of rare earth modified PbTiO3

Cerâmica, 2005
Titanatos de chumbo dopados com itérbio e ítrio, PYbT e PYT foram preparados pelo método Pechini. Os materiais obtidos foram calcinados sobre fluxo de oxigênio em diferentes temperaturas e investigados utilizando-se as técnicas de difração de raios X ...
F. C. D. Lemos, E. Longo, D. M. A. Melo, A. O. Silva, F. J. S. Lima, J. E. C. Silva   +5 more
doaj   +1 more source

First Principles Theories of Piezoelectric Materials

, 2007
Piezoelectrics have long been studied using parameterized models fit to experimental data, starting with the work of Devonshire in 1954. Much has been learned using such approaches, but they can also miss major phenomena if the materials properties are ...
Cohen, R. E.
core   +1 more source

Optimization of electro-strain and ferroelectric properties of P(VDF-TrFE) films under the synergistic effect of PTO nanosheets and in-situ electrostatic field

Journal of Materiomics
Traditional ferroelectric materials, such as lead zirconate titanate (PZT) ceramics, exhibit positive strain when subjected to an electric field along the polarization direction.
Kaiqi Zhu, Fu Lv, Jiamin Lin, Zijian Hong, Yongjun Wu, Yuhui Huang   +5 more
doaj   +1 more source