Ferroelectric low-voltage ON/OFF switching of chiral benzene-1,3,5-tricarboxamide derivative

2020 ◽  
Vol 8 (30) ◽  
pp. 10283-10289
Author(s):  
Jianyun Wu ◽  
Takashi Takeda ◽  
Norihisa Hoshino ◽  
Tomoyuki Akutagawa
Keyword(s):  
Electric Field ◽  
Liquid Crystalline ◽  
Low Voltage ◽  
Crystalline Benzene ◽  
Coercive Electric Field ◽  
Ferroelectric Switching

Chiral liquid crystalline benzene trialkylamide derivative showed much lower coercive electric field for ferroelectric switching.

Switching Kinetics of Pulsed Laser Deposited Epitaxial PZT Films

1998 ◽  
Vol 526 ◽  
Author(s):  
M. Yamazato ◽  
A. M. Grishin ◽  
Y. Yamagata ◽  
T. Ikegami ◽  
K. Ebihara
Keyword(s):  
Electric Field ◽  
Domain Switching ◽  
Switching Time ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Pzt Films ◽  
Frequency Independent ◽  
Kinetics Of ◽  
Coercive Electric Field ◽  
Ferroelectric Switching

AbstractWe have fabricated epitaxial PbZr0.52Ti0.48O3 (PZT, 40~1200 nm)/YBa2Cu3O7-x (YBCO, 400 nm) film ferroelectric/superconductor heterostructures on the single-crystal neodymium doped yttrium monoaluminate [YAlO3+1%Nd2O3] and MgO substrates by KrF pulsed laser deposition technique. The dielectric constant of 950 and loss tangent δ of 0.04 have been found to be frequency independent in the range 100 Hz to 100 kHz while electric resistivity ρ (150 kV/cm) is of 6×1011 Ω·cm, remnant polarization and coercive field are 32 μC/cm2 and 43 kV/cm, respectively. Fast ferroelectric switching kinetics with characteristic switching time around 50 ns has been observed. Universal electric field and temperature dependencies of switching time as well as film thickness dependence of coercive electric field have been observed and correspond to ferroelectric needle-like domain switching.

Control of Ferroelectric Properties of PbZrxTi1−xO3 Thin Film for Electron Emission Device Driven by Low Voltage

1998 ◽  
Vol 541 ◽  
Author(s):  
Y. Yamagata ◽  
M. Yamazato ◽  
T. Ikegami ◽  
K. Ebihara ◽  
J. Narayan ◽  
...  
Keyword(s):  
Electric Field ◽  
Film Thickness ◽  
Ferroelectric Phase ◽  
Low Voltage ◽  
Ferroelectric Properties ◽  
Domain Growth ◽  
One Dimensional ◽  
Pzt Films ◽  
The One ◽  
Coercive Electric Field

AbstractEpitaxial PbZr0.52TiO0.48O3/YBa2Cu3O7−x heterostructures on Nd:YAlO3 and MgO substrates were fabricated by KrF pulsed laser deposition. The coercive electric field of the PZT films increased with decrease of the film thickness from 1.2 μm to 0.04 μm, while the magnitude of spontaneous polarization was almost constant in this thickness range. It was found that the dependence of the film thickness d on the coercive electric field Ec was Ecæ d−2/3. This results from that the PZT/YBCO heterostructure has the one dimensional ferroelectric domain growth without non-ferroelectric phase. The polarization of AuIPZT/YBCO/(MgO or YAlO) capacitors can be changed by the applied voltage below 5 V.

scholarly journals Super-coercive electric field hysteresis in ferroelectric plastic crystal tetramethylammonium bromotrichloroferrate(iii)

2020 ◽  
Vol 8 (9) ◽  
pp. 3206-3216
Author(s):  
Julian Walker ◽  
Rany Miranti ◽  
Susanne Linn Skjærvø ◽  
Tadej Rojac ◽  
Tor Grande ◽  
...  
Keyword(s):  
Electric Field ◽  
Plastic Crystal ◽  
Plastic Crystals ◽  
Coercive Electric Field ◽  
Ferroelectric Switching

Ionic plastic crystals are part of an emerging class of hybrid organic–inorganic ferroelectrics. Their super-coercive electric field hysteresis bares the signatures of ferroelectric switching, including interesting contributions from defects.

Electric-Field-Responsive Handle for Large-Area Orientation of Discotic Liquid-Crystalline Molecules in Millimeter-Thick Films

2011 ◽  
Vol 123 (34) ◽  
pp. 8011-8015 ◽  
Author(s):  
Daigo Miyajima ◽  
Fumito Araoka ◽  
Hideo Takezoe ◽  
Jungeun Kim ◽  
Kenichi Kato ◽  
...  
Keyword(s):  
Electric Field ◽  
Liquid Crystalline ◽  
Thick Films ◽  
Large Area

Fundamental Study of Cannabidiol Effect on MCF-7 with Low Voltage Pulse Electric Field

2021 ◽  
Author(s):  
Nur Adilah Abd Rahman ◽  
Muhammad Mahadi Abdul Jamil ◽  
Mohamad Nazib Adon ◽  
Ahmad Basri Zainal ◽  
Farideh Javid ◽  
...  
Keyword(s):  
Electric Field ◽  
Voltage Pulse ◽  
Low Voltage ◽  
Pulse Electric Field ◽  
Fundamental Study ◽  
Pulse Electric ◽  
Mcf 7

Relaxation of a liquid-crystalline order induced by an electric field

2006 ◽  
Vol 80 (12) ◽  
pp. 2029-2032 ◽  
Author(s):  
T. A. Rotinyan ◽  
E. I. Ryumtsev ◽  
A. V. Lezov
Keyword(s):  
Electric Field ◽  
Liquid Crystalline ◽  
Crystalline Order

MOLECULAR ORIENTATION AND ELECTROHYDRODYNAMIC FLOW IN HOMOGENEOUS ER FLUIDS

2001 ◽  
Vol 15 (06n07) ◽  
pp. 973-979 ◽  
Author(s):  
HIROKI IWATSUKI ◽  
NAOTO GOHKO ◽  
HIROSHI KIMURA ◽  
YUICHI MASUBUCHI ◽  
JUN-ICHI TAKIMOTO ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Electric Field ◽  
Molecular Orientation ◽  
Liquid Crystalline ◽  
Polypropylene Glycol ◽  
Homogeneous Fluid ◽  
Immiscible Liquids ◽  
Electrohydrodynamic Flow ◽  
Er Fluids ◽  
Er Fluid

Homogeneous ER fluid is an ER fluid which consists of a homogeneous fluid only; it is neither a suspension nor a blend of immiscible liquids. Various liquid crystals are typical examples of homogeneous ER fluids. Recently, we have found that urethane-modified polypropylene glycol (UPPG) is one of the very few examples of homogeneous ER fluids which show no liquid crystalline order. In order to clarify the mechanism of the ER effect in this fluid, we have studied, in this paper, electrohydrodynamic flow under shear and electric field.

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