Results 271 to 280 of about 8,506,464 (324)

Effects of Capping Electrode on Ferroelectric Properties of Hf0.5Zr0.5O2 Thin Films

IEEE Electron Device Letters, 2018
In this letter, effects of top electrodes (TEs) on ferroelectric properties of Hf0.5 Zr0.5 O2 (HZO) thin films are examined systematically. The remnant polarization (Pr) of HZO thin films increases by altering TEs with lower thermal expansions ...
Rongrong Cao, Yan Wang, Shengjie Zhao, Yang Yang, Xiaolong Zhao, Wei Wang, Xumeng Zhang, H. Lv, Qi Liu, Ming Liu   +9 more
semanticscholar   +1 more source

Ferroelectric and dielectric properties of ferrite-ferroelectric ceramic composites

Journal of Applied Physics, 2013
Particulate composites of ferrite and ferroelectric phases with xNiFe2O4 (NF) and (1 − x)Pb0.988(Zr0.52Ti0.48)0.976Nb0.024O3 (where x = 2, 10, 20, 30, 50, 70, and 100 wt. %) were prepared in situ by sol-gel method. The presence of a diphase composition was confirmed by X-ray diffraction while the microstructure of the composites was studied by scanning
Ciomaga, Cristina Elena, Neagu, Alexandra Maria, Pop, Mihai Valentin, Airimioaei, Mirela, Tascu, Sorin, Schileo, Giorgio, Galassi, Carmen, Mitoseriu, Liliana   +15 more
openaire   +1 more source

Ferroelectric properties of pyridinium perrhenate

The Journal of Chemical Physics, 1997
Polycrystalline pyridinium perrhenate has been studied over a wide range of temperatures by differential thermal analysis, differential scanning calorimetry, proton NMR spectra and relaxation, and dielectric permittivity measurements. Two solid–solid phase transitions at 250 and 333 K have been revealed and the pyridinium cation reorientations ...
J. Wąsicki, P. Czarnecki, Z. Pająk, W. Nawrocik, W. Szczepański   +4 more
openaire   +1 more source

Van der Waals layered ferroelectric CuInP2S6: Physical properties and device applications

Frontiers of Physics, 2020
Copper indium thiophosphate, CuInP2S6, has attracted much attention in recent years due to its van der Waals layered structure and robust ferroelectricity at room temperature.
Shuang Zhou, L. You, Hailin Zhou, Y. Pu, Z. Gui, Junling Wang   +5 more
semanticscholar   +1 more source

Dielectric properties of microcomposite ferroelectrics

Phase Transitions, 1999
Abstract The dielectric response in two-phase composites of ferroelectric and dielectric materials was studied within the quasistatic approximation. Using different effective medium theories (Maxwell-Garnet theory, the effective medium approximation and the Bergman representation) the dielectric function was represented as a distribution of polar modes.
I. Rychetský, O. Hudák, J. Petzelt
openaire   +1 more source

Ferroelectric properties of pyridinium fluorosulfonate

The Journal of Chemical Physics, 2000
Pyridinium fluorosulfonate has been synthesized and studied over a wide range of temperatures by differential thermal analysis, differential scanning calorimetry, H1H and F19 nuclear magnetic resonance (NMR) spectra and relaxation, and complex dielectric permittivity.
Z. Pająk, P. Czarnecki, H. Małuszyńska, B. Szafrańska, M. Szafran   +4 more
openaire   +1 more source

Improved Ferroelectric/Semiconductor Interface Properties in Hf0.5Zr0.5O2 Ferroelectric FETs by Low-Temperature Annealing

IEEE Electron Device Letters, 2020
Crystallization annealing is a key process for the formation of the ferroelectric phase in HfO2-based ferroelectric thin films. In this study, we systematically investigate the notable tradeoff of the annealing process, with temperature varied from 300°C
K. Toprasertpong, K. Tahara, Taichiro Fukui, Zaoyang Lin, Kouhei Watanabe, M. Takenaka, S. Takagi   +6 more
semanticscholar   +1 more source

Ferroelectric properties of pyridinium periodate

The Journal of Chemical Physics, 1998
Polycrystalline pyridinium periodate has been studied over a wide range of temperature by differential thermal analysis, proton nuclear magnetic resonance (NMR) spectra and relaxation and complex dielectric permittivity measurements. Two solid-solid phase transitions at 210 and 323 K have been revealed and the pyridinium cation reorientation in all ...
Z. Pająk, P. Czarnecki, J. Wąsicki, W. Nawrocik   +3 more
openaire   +1 more source

Excellent Energy Storage Properties Achieved in BaTiO3-based Lead-Free Relaxor Ferroelectric Ceramics via Domain Engineering on the Nanoscale.

ACS Applied Materials and Interfaces, 2019
Barium titanate-based energy storage dielectric ceramics have caused more and more concern due to their environmental friendliness and outstanding ferroelectric properties.
Ying Lin, Da Li, Miao Zhang, S. Zhan, Yaodong Yang, Haibo Yang, Q. Yuan   +6 more
semanticscholar   +1 more source

Ferroelectric Properties of Colemanite

Journal of Applied Physics, 1959
The ferroelectric properties of the calcium borate mineral colemanite are investigated in the ferroelectric and paraelectric temperature regions. It is shown that Devonshire's phenomenological theory may be applied successfully to account for the experimental measurements of spontaneous polarization and electrical susceptibility over a wide temperature
openaire   +1 more source