Results 11 to 20 of about 38,577 (260)

Determination of polarization states in (K,Na)NbO3 lead-free piezoelectric crystal

open access: yesJournal of Advanced Ceramics, 2020
Polarization switching in lead-free (K0.40Na0.60)NbO3 (KNN) single crystals was studied by switching spectroscopy piezoresponse force microscopy (SS-PFM).
Mao-Hua Zhang   +9 more
doaj   +1 more source

Scale-free switching of polarization in the layered ferroelectric material CuInP_{2}S_{6}

open access: yesPhysical Review Research, 2023
Using first-principles calculations we model the out-of-plane switching of local dipoles in CuInP_{2}S_{6} (CIPS) that are largely induced by Cu off-centering.
N. Sivadas, Bobby G. Sumpter, P. Ganesh
doaj   +1 more source

Switching a Polar Metal via Strain Gradients [PDF]

open access: yesPhysical Review Letters, 2021
Although rare, spontaneous breakdown of inversion symmetry sometimes occurs in a material which is metallic: these are commonly known as polar metals or ferroelectric metals. Their 'polarization', however, cannot be switched via an electric field, which limits the experimental control over band topology.
Zabalo, Asier, Stengel, Massimiliano
openaire   +4 more sources

Polarization switching of segmentally helical undulators in a diffraction-limited storage ring

open access: yesPhysical Review Accelerators and Beams, 2023
Polarization switching of synchrotron radiation has wide application prospects in various areas, requiring a high switching frequency between horizontally linear polarization (HLP) and vertically linear polarization (VLP) or between left-hand circular ...
Nanrui Yang   +3 more
doaj   +1 more source

Easy Collective Polarization Switching in Ferroelectrics [PDF]

open access: yesPhysical Review Letters, 2000
5 pages, REVTeX 3.1 with one eps-figure. Corrected discussion of single stripe and cylindrical nuclei, and their interaction. The estimate for equilibrium density of embryonic nuclei is added. To appear in Phys.
Bratkovsky, A. M., Levanyuk, A. P.
openaire   +3 more sources

Field‐Induced Ferroelectric Phase Evolution During Polarization “Wake‐Up” in Hf0.5Zr0.5O2 Thin Film Capacitors

open access: yesAdvanced Electronic Materials, 2023
As an emerging nonvolatile memory technology, HfO2‐based ferroelectrics exhibit excellent compatibility with silicon CMOS process flows; however, the reliability of polarization switching in these materials remains a major challenge.
Balreen Saini   +7 more
doaj   +1 more source

Switching the polarity of a bacteriophage integration system [PDF]

open access: yesMolecular Microbiology, 2004
SummaryDuring lysogenic growth many temperate bacteriophage genomes are integrated into the host's chromosome and efficient integration and excision are therefore an essential part of the phage life cycle. The Streptomyces phage φC31 encodes an integrase related to the resolvase/invertases and is evolutionarily and mechanistically distinct from the ...
Matthew C A, Smith   +2 more
openaire   +2 more sources

Fast Polarization Switch for Polarization-based Quantum Communication

open access: yesProceedings of the 5th International Conference on Photonics, Optics and Laser Technology, 2017
We present a complete optoelectronic unit for polarization visualization, switching and control. The system is based on an FPGA unit and comprises: an acquisition unit containing an analog polarimeter and digital-to-analog converters, an FPGA capable of implementing an optimal algorithm for three-stage arbitrary polarization tracking, and an electronic
Vinicius Lima   +6 more
openaire   +3 more sources

Magnetic Domain Change Induced by In‐Plane Electric Polarization Switching in Bi(Fe, Co)O3 Thin Film

open access: yesAdvanced Physics Research, 2023
Perovskite BiFe0.9Co0.1O3 with electric‐field‐induced magnetization reversal is a promising material for low‐power non‐volatile memory devices because spontaneous magnetization perpendicular to the electric polarization can be reversed by out‐of‐plane ...
Kei Shigematsu   +6 more
doaj   +1 more source

A Flip-Flop Switch in Polarity Signaling [PDF]

open access: yesDevelopmental Cell, 2007
The Rho GTPase Cdc42 is essential for polarized growth of budding yeast. Temporal control of Cdc42 depends partly on the activity of its GTPase-activating proteins (GAPs). In this issue of Developmental Cell, Saito et al. report that Cdc42 GAP activity is regulated by the phospholipid composition of the bud-tip membrane, under control of the ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy