Results 51 to 60 of about 58,332 (288)

Ab-initio study of the relation between electric polarization and electric field gradients in ferroelectrics

, 2012
The hyperfine interaction between the quadrupole moment of atomic nuclei and the electric field gradient (EFG) provides information on the electronic charge distribution close to a given atomic site.
A. S. Fenta, A. Stroppa, D. C. Dening, G. Schatz, J. G. Correia, J. N. Gonçalves, S. Picozzi, T. Butz, V. S. Amaral   +8 more
core   +1 more source

A New Threshold Switching Device With Tunable Negative Differential Resistance Based on ErMnO3 Polymorphs

Advanced Functional Materials, EarlyView.
Polymorph engineering in ErMnO3 enables low‐voltage, forming‐free threshold switching with tunable negative differential resistance. Conducting orthorhombic regions embedded in an insulating hexagonal matrix provide controlled Joule‐heating‐enhanced Poole–Frenkel transport. The hexagonal phase prevents excessive heating and breakdown.
Rong Wu, Florian Maudet, Thanh Luan Phan, Wassim Hamouda, Richard Schroedter, Ahmet Samil Demirkol, Ronald Tetzlaff, Veeresh Deshpande, Catherine Dubourdieu   +8 more
wiley   +1 more source

Energy Storage and Electrocaloric Cooling Performance of Advanced Dielectrics

Molecules, 2021
Dielectric capacitors are widely used in pulse power systems, electric vehicles, aerospace, and defense technology as they are crucial for electronic components. Compact, lightweight, and diversified designs of electronic components are prerequisites for
Yalong Zhang, Jie Chen, Huiyu Dan, Mudassar Maraj, Biaolin Peng, Wenhong Sun   +5 more
doaj   +1 more source

Ferroelectric Phase Transitions in Ultra-thin Films of BaTiO3 [PDF]

, 2007
We present molecular dynamics simulations of a realistic model of an ultrathin film of BaTiO$_3$ sandwiched between short-circuited electrodes to determine and understand effects of film thickness, epitaxial strain and the nature of electrodes on its ...
Jaita Paul, K. Binder, M. E. Lines, Takeshi Nishimatsu, Umesh V. Waghmare, Yoshiyuki Kawazoe   +5 more
core   +2 more sources

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Aurivillius BaBi4Ti4O15 based compounds: Structure, synthesis and properties [PDF]

Processing and Application of Ceramics, 2014
The discovery of some Aurivillius materials with high Curie temperature or fatigue-free character suggests possible applications in high temperature piezoelectric devices or non-volatile ferroelectric random access memories.
Jelena D. Bobić, Mirjana M. Vijatović Petrović, Biljana D. Stojanović   +2 more
doaj   +1 more source

Ferroelectric Smectic Liquid Crystals as Electrocaloric Materials

Crystals, 2022
The 1980s saw the development of ferroelectric chiral smectic C (SmC*) liquid crystals (FLCs) with a clear focus on their application in fast electro-optic devices.
Peter John Tipping, Helen Frances Gleeson   +1 more
doaj   +1 more source

Superlattice-induced ferroelectricity in charge-ordered La$_{1/3}$Sr$_{2/3}$FeO$_{3}$ [PDF]

, 2019
Charge-order-driven ferroelectrics are an emerging class of functional materials, distinct from conventional ferroelectrics, where electron-dominated switching can occur at high frequency.
Neaton, Jeffrey B., Park, Se Young, Rabe, Karin M.   +2 more
core   +3 more sources

Electro‐Chemo‐Mechanical Coupling in Hf0.5Zr0.5O2 Ferroionic Heterostructures

Advanced Functional Materials, EarlyView.
Schematic of a ferroionic HZO heterostructure where epitaxial interfaces enable dynamic oxygen‐vacancy exchange, coupling ionic and ferroelectric degrees of freedom. Vacancy‐mediated polarization modulation biases HZO polymorphism, suppresses leakage, and enhances piezoelectric response, yielding distinct butterfly‐loop evolution and diode‐like ...
Achilles Bergne, Denis Alikin, Milica Vasiljevic, Victor B. Tinti, Javier Zamudio‐García, Leonardo Soares de Oliveira, Megan Landberg, Dimitrios Koukoulis, Huaiyu Chen, Jesper Wallentin, David Marrero‐López, Astri Bjørnetun Haugen, Sizhao Huang, Dennis Christensen, Nini Pryds, Alexander Tselev, Andrei Kholkin, Vincenzo Esposito   +17 more
wiley   +1 more source

Research progress on ferroelectric catalytic materials for antimicrobials

工程科学学报
Research and development of antimicrobial technology are critical for safeguarding human life and health. Ferroelectric materials, materials with spontaneous polarization, can adjust their direction of spontaneous polarization in response to an external ...
Yan ZHANG, Junling CHE, Yanmin JIA
doaj   +1 more source