Results 31 to 40 of about 21,239 (224)

An Effective Model of Magnetoelectricity in Multiferroics $RMn_2O_5$

, 2007
An effective model is developed to explain the phase diagram and the mechanism of magnetoelectric coupling in multiferroics, $RMn_2O_5$. We show that the nature of magnetoelectric coupling in $RMn_2O_5$ is a coupling between two Ising-type orders, namely,
Bak P., Chen Fang, Fang C. Hu J., Harris A. B., Jangping Hu, Radulov I. Lovchinov V. Daszkiewicz M., Shender E. F., Tsvelik A. M.   +7 more
core   +1 more source

Scaling‐Up of Structural Superlubricity: Challenges and Opportunities

Advanced Functional Materials, EarlyView.
At increasing length‐scales, structural superlubricity (SSL) faces challenges from physical and chemical energy dissipation pathways. This study reviews recent experimental and theoretical progress on these challenges facing the scaling‐up of SSL, as well as perspectives on future directions for realizing and manipulating macroscale superlubricity ...
Penghua Ying, Xiang Gao, Diana Berman, Oded Hod, Michael Urbakh   +4 more
wiley   +1 more source

Multiferroic and Ferroic Topological Order in Ligand-Functionalized Germanene and Arsenene

, 2018
Two-dimensional (2D) materials that exhibit ferroelectric, ferromagnetic, or topological order have been a major focal topic of nanomaterials research in recent years.
Chen, Changfeng, Du, Aijun, Kou, Liangzhi, Liao, Ting, Ma, Yandong   +4 more
core   +1 more source

Ferroelectric Field‐Effect‐Transistor Integrated with Ferroelectrics Heterostructure

Advanced Science, 2022
AbstractTo address the demands of emerging data‐centric computing applications, ferroelectric field‐effect transistors (Fe‐FETs) are considered the forefront of semiconductor electronics owing to their energy and area efficiency and merged logic–memory functionalities. Herein, the fabrication and application of an Fe‐FET, which is integrated with a van
Sungpyo Baek, Hyun Ho Yoo, Jae Hyeok Ju, Panithan Sriboriboon, Prashant Singh, Jingjie Niu, Jin‐Hong Park, Changhwan Shin, Yunseok Kim, Sungjoo Lee   +9 more
openaire   +3 more sources

Tunable Tactile Synapses Enabled by Erasable Doping in Iongel‐Gated Nanotube Network Transistors

Advanced Functional Materials, EarlyView.
Artificial tactile synaptic sensors are realized by an iongel‐gated single‐walled carbon nanotube (SWCNT) transistor with reversible doping characteristics. The device senses and memorizes tactile stimuli and exhibits gate bias‐dependent excitatory or inhibitory synaptic behavior.
Yan Huang, Yaoqiang Zhou, Sonja Wieland, Yachen Li, Ni Zhao, Jana Zaumseil   +5 more
wiley   +1 more source

Recent progress in first-principles studies of magnetoelectric multiferroics

, 2005
Materials that combine magnetic and ferroelectric properties have generated increasing interest over the last few years, due to both their diverse properties and their potential utility in new types of magnetoelectric device applications.
Anderson, Anisimov, Anisimov, Baettig, Baettig, Bai, Bokov, Bungaro, Choi, Claude Ederer, Cohen, Cohen, dos Santos, dos Santos, Ederer, Ederer, Ederer, Eerenstein, Fennie, Fennie, Fiebig, Fiebig, Filippetti, Filippetti, Filippetti, Fischer, Ghosez, Goodenough, Haeni, Hemberger, Hill, Hill, Hill, Hill, Hill, Hur, Jones, Kimura, Kimura, King-Smith, Kiselev, Li, Lottermoser, Martin, Medvedeva, Moriya, Neaton, Neaton, Nicola A. Spaldin, Niitaka, Palkar, Perdew, Qi, Qian, Resta, Schmid, Schmid, Schmid, Seshadri, Shishidou, Skinner, Smolenskii, Solovyev, Sosnowska, Spaldin, Sugawara, Teague, Terakura, Ueda, Ueda, van Aken, van Aken, Vanderbilt, Wang, Wang, Xu, Yakel, Yun, Zheng   +78 more
core   +1 more source

On the Physics of Ferroelectrics

Science Progress, 2003
The main physical properties of ferroelectric crystals are described, and the macroscopic and microscopic viewpoints are discussed along with some applications, such as in capacitors and nonlinear optics. The emphasis is on physical understanding, while the mathematical level is kept to a minimum or supplemented by graphical representations to make ...
openaire   +3 more sources

Theory of electronic ferroelectricity [PDF]

Physical Review B, 1996
We present a theory of the linear and nonlinear optical characteristics of the insulating phase of the Falicov-Kimball model within the self-consistent mean-field approximation. The Coulomb attraction between the itinerant d-electrons and the localized f-holes gives rise to a built-in coherence between the d and f-states, which breaks the inversion ...
T. Portengen, L. J. Sham, Th. Östreich
openaire   +4 more sources

Multielement Filament Memristor Enabling Multifunctional Neuromorphic Device

Advanced Functional Materials, EarlyView.
A new type of memristor featuring a hybrid mechanism and multifunctional applications is introduced. The proposed single device combines the alloy metal filament with the oxygen vacancy filament to achieve both resistive and threshold switching with enhanced reliability, mimicking both biological synapses and nociceptors. This study shows that filament‐
Mingu Jang, Hanchan Song, Hae Jin Kim, Jung Ho Yoon, Kyung Min Kim   +4 more
wiley   +1 more source

Ferroelectricity and Self-Polarization in Ultrathin Relaxor Ferroelectric Films [PDF]

Scientific Reports, 2016
AbstractWe report ferroelectricity and self-polarization in the (001) oriented ultrathin relaxor ferroelectric PMN-PT films grown on Nb-SrTiO3, SrRuO3 and La0.7Sr0.3MnO3, respectively. Resistance-voltage measurements and AC impedance analysis suggest that at high temperatures Schottky depletion width in a 4 nm thick PMN-PT film deposited on Nb-SrTiO3 ...
Diyang Zhao, Huiyun Zhang, Meihong Zhu, Peixian Miao, Nengneng Luo, Yonggang Zhao, Aitian Chen, Qiang Li, Zhong Sun, Meiqi Guo   +9 more
openaire   +2 more sources