Spontaneous Polarization
Spontaneous polarization and piezoelectricity in boron nitride nanotubes
... nonzero spontaneous polarization ...the spontaneous electric field that changes with the index of the ...electronic polarization in BNNT’s does not change its direc- tion but rather grows ...
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Study of Ferroelectric Phase Transition and Spontaneous Polarization in Lead Hydrogen Phosphate Type Crystals
... By modifying two sub-lattice pseudospin lattice coupled mode model, adding third and fourth-order phonon anharmonic interactions terms, Expressions for shift, width, ferroelectric mode frequency, dielectric constant, ...
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Tilt engineering of spontaneous polarization and magnetization above 300 K in a bulk layered perovskite
... both polarization and magnetization at room temperature (RT) in a bulk n = 2 RP oxide through control of composition to generate the required octahedral tilts in a system with a strongly magnetic B-site ...
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Combined piezo-electrooptical effect in Pb5Ge3O11 crystals induced by spontaneous polarization
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Dielectric and Spontaneous Polarization Studies of a Ferroelectric Chiral Smectic Liquid Crystal
... phase is a layered structured phase made up of chiral molecules, it is attributed to contain a modulated struc- ture of the director (i.e., while going from one layer to the neighboring layer along the layer normal). As ...
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Saturation of Spontaneous Polarization Charge in Pyroelectric Crystals of LiNbO3, LiTaO3 and CsNO3 at Low Temperature Above 4 2 K
... This fluctuation is attributed to pick-up from the motion of the magnets moving with the crystal assembly and the varying currents in the temperature sensor circuits. Further discussion of this attribute of the ...
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Some uses of the spontaneous polarization method
... Drill holes drilled on these and the previously described anomalies revealed sulphide and pyrite bodies.. due to obvious rea- sons.[r] ...
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First principles study of spontaneous polarization in multiferroic BiFeO3
... 兲 polarization value with the smallest − 共 R3c 兲 value have yet to be deter- ...兲 polarization from only a small dis- tortion of the perovskite structure would require a somewhat drastic rearrangement of ...
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Ferromagneto Toroidic Space Groups
... by spontaneous polarization, magnetization and strain, there is a observed fourth type of primary ferroic crystal ...in spontaneous toroidal moment ...the spontaneous toroidal moment and ...
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Monoclinic distortion, polarization rotation and piezoelectricity in the ferroelectric Na0 5Bi0 5TiO3
... rotatable spontaneous polarization. Neither polarization rotation nor its potentially important real role in enhanced piezoelectricity is well ...the polarization rotation. This suggests that ...
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Dielectric and Ferroelectric Properties of Ho2O3 Doped Barium Strontium Titanate Ceramicsq
... The bigger Ho 3+ ions in the B site restrict the activity of B site ions and thus weaken the spontaneous polarization, which causes the relative dielectric constant decrease si[r] ...
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Polarization and Breakdown Analysis of AlGaN Channel HEMTs with AlN Buffer
... piezoelectric polarization at the interface of AlGaN channel. Spontaneous polarization is mainly in- creased by the Al difference between a barrier and channel ...region. Spontaneous ...
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Molecular Spectroscopic Studies OF TGS, TGSP and TGSZC Crystals
... From UV-Vis spectra of grown crystals it is confirmed that all these crystals have excellent optical quality.This property makes these crystals useful for applications in lasers, holographic recording, optical filters ...
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Impact of alloy fluctuations and Coulomb effects on the electronic and optical properties of c-plane GaN/AlGaN quantum wells
... overall polarization vector field is dominated by piezoelectric effects, in GaN/AlGaN systems the spontaneous polarization is comparable, and might even be larger than the piezoelectric ...both ...
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Polarization Converter with Controllable Birefringence Based on Hybrid All Dielectric Graphene Metasurface
... In summary, birefringence controllability of a hybrid silicon/graphene metasurface polarization converter has been numerically designed. Trapped magnetic modes and high Q-factors are modulated by integrating ...
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Compact and robust linear Stokes polarization camera
... spectrum polarization of light carries abundant information [1-8] . Polarization is by far the less investigated of these three fundamental properties of ...the polarization parameters of a ...
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An Electromagnetic Interrogation Technique Utilizing Pressure-dependent Polarization
... the polarization of a polar liquid has multiple mechanisms, we expect that a complete model must incorporate them ...Orientational polarization is suggestive of a mechanism with an exponential decay factor, ...
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Polarization calibration of the Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO)
... a polarization calibration unit (PCU) described below, which allows for the generation of various states of polarized ...little polarization (see Section ...rotating polarization caused by the ...
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Design of Space Atmospheric Polarization Observation Instrument
... the polarization degree of the distribution of each time, the whole sky polarization distribution is not fixed, but varies with the position of the sun; and from the polarization distribution on the ...
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The polarization trap
... To summarize, theory offers us three main arguments based on which we can expect to see an association between ethnic conflicts and vote choice: civil conflicts have profound effects on [r] ...
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