Results 61 to 70 of about 117,863 (296)

AlScN: A III-V semiconductor based ferroelectric

, 2018
Ferroelectric switching is unambigiously demonstrated for the first time in a III-V semiconductor based material: AlScN -- A discovery which could help to satisfy the urgent demand for thin film ferroelectrics with high performance and good technological
Fichtner, Simon, Kienle, Lorenz, Lofink, Fabian, Wagner, Bernhard, Wolff, Niklas   +4 more
core   +1 more source

Giant Electroresistance in Ferroelectric Tunnel Junctions [PDF]

, 2005
The interplay between the electron transport in metal/ferroelectric/metal junctions with ultrathin ferroelectric barriers and the polarization state of a barrier is investigated. Using a model which takes into account screening of polarization charges in
C. B. Duke, E. Y. Tsymbal, G. A. Samara, M. Ye. Zhuravlev, N. W. Ashcroft, R. F. Sabirianov, S. S. Jaswal   +6 more
core   +4 more sources

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Ferroelectric Memory Based on Topological Domain Structures: A Phase Field Simulation

Crystals, 2022
The low storage density of ferroelectric thin film memory currently limits the further application of ferroelectric memory. Topologies based on controllable ferroelectric domain structures offer opportunities to develop microelectronic devices such as ...
Jing Huang, Pengfei Tan, Fang Wang, Bo Li   +3 more
doaj   +1 more source

Intertwined Rashba, Dirac and Weyl Fermions in Hexagonal Hyperferroelectrics

, 2016
By means of density functional theory based calculations, we study the role of spin-orbit coupling in the new family of ABC hyperferroelectrics [Phys. Rev. Lett. 112, 127601 (2014)].
Barone, Paolo, Di Sante, Domenico, Garrity, Kevin F., Picozzi, Silvia, Stroppa, Alessandro, Vanderbilt, David   +5 more
core   +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

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

Advanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu, Xiangwei Guo, Sajid Husain, Maya Ramesh, Pushpendra Gupta, Darrell Schlom, Ramamoorthy Ramesh, Yu‐Tsun Shao   +7 more
wiley   +1 more source

More ferroelectrics discovered by switching spectroscopy piezoresponse force microscopy?

, 2014
The local hysteresis loop obtained by switching spectroscopy piezoresponse force microscopy (SS-PFM) is usually regarded as a typical signature of ferroelectric switching.
Li, Faxin, Miao, Hongchen, Tan, Chi, Wei, Xiaoyong, Zhou, Xilong   +4 more
core   +1 more source

Thermally Engineered Sodium‐Embedded Alumina with Programmable Synaptic Plasticity for Neuromorphic Transistors

Advanced Functional Materials, EarlyView.
A fully transparent, all‐metal‐oxide neuromorphic transistor using a sodium‐embedded alumina (SEA) electrolyte is demonstrated. By precisely tuning the thermal annealing process, the chemical composition of the SEA layer is controlled, allowing for the deterministic realization of both short‐term and long‐term synaptic plasticity within the same device
Yonghyun Albert Kwon, Jaeyeon Kim, Dong Yeon Won, Saeyoun Park, Youngjae Yoo, Seongchan Kim, Dong‐Hwan Kim, Jeong Ho Cho   +7 more
wiley   +1 more source

Integration of first-principles methods and crystallographic database searches for new ferroelectrics: Strategies and explorations

, 2012
In this concept paper, the development of strategies for the integration of first-principles methods with crystallographic database mining for the discovery and design of novel ferroelectric materials is discussed, drawing on the results and experience ...
Abrahams, Abrahams, Abrahams, Alexe, Armiento, Atuchin, Belsky, Benedek, Bennett, Bennett, Bennett, Berger, Boucher, Bousquet, Campbell, Caracas, Caracas, Catalan, Chang, Chang, Cheah, Cho, Choi, Clingman, Edelstein, Eijt, Eklund, Fennie, Fennie, Fischer, Foster, Fridkin, Fukushima, Gonze, Gou, Haeni, Halasyamani, Hautier, Ivanov, Izyumskaya, Jain, Joseph W. Bennett, Karin M. Rabe, Katiyar, Kim, Kim, Lee, Lee, Lima De Faria, Lufaso, Maggard, Maior, Mandal, Mannhart, Marvel, Monkhorst, Morgan, Moriya, Ouvrard, Picozzi, Politova, Puebla, Qi, Rabe, Ramer, Rappe, Rushchanskii, Schmid, Scott, Smirnov, Trimarchi, van Loosdrecht, Wang, Whitaker, Yang, Yin, Zhang   +76 more
core   +1 more source