Results 111 to 120 of about 403,773 (279)

Anomalous Spin-Orbit Torques in Magnetic Single-Layer Films

, 2019
Spin-orbit interaction (SOI) couples charge and spin transport, enabling electrical control of magnetization. A quintessential example of SOI-induced transport is the anomalous Hall effect (AHE), first observed in 1880, in which an electric current ...
Allen, Shane R., Amin, Vivek P., Balzar, Davor, Cahill, David G., Davidson, Angie, Fan, Xin, Haney, Paul M., Lorenz, Virginia O., Ohldag, Hendrik, radhakrishnan, Anil, Silva, T. J., Wang, Tao, Wang, Wenrui, Wang, Yang, Xiao, John Q., Zink, Barry L.   +15 more
core   +1 more source

A New 3D Colon on a Chip to Decipher the Influence of Mechanical Forces on the Physiological Cellular Ecosystem

Advanced Healthcare Materials, EarlyView.
To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery, Lauriane Gérémie, Julie Brun, Lucas Chassatte, Giacomo Gropplero, Réda Bouras, Jieun Choo, Bertrand Cinquin, Alba Marcellan, Danijela Matic Vignjevic, Stéphanie Descroix   +10 more
wiley   +1 more source

Resolving the Structural Duality of Graphene Grain Boundaries

Advanced Materials, EarlyView.
Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo, Emiliano Ventura‐Macías, Mariano D. Jiménez‐Sánchez, Nicoleta Nicoara, Pierre Mallet, Jean‐Yves Veuillen, Vincent T. Renard, Antonio J. Martínez‐Galera, Pablo Pou, Julio Gómez‐Herrero, Rubén Pérez, Iván Brihuega   +11 more
wiley   +1 more source

Antiferromagnetic magnonic charge current generation via ultrafast optical excitation

Nature Communications
Néel spin-orbit torque allows a charge current pulse to efficiently manipulate the Néel vector in antiferromagnets, which offers a unique opportunity for ultrahigh density information storage with high speed.
Lin Huang, Liyang Liao, Hongsong Qiu, Xianzhe Chen, Hua Bai, Lei Han, Yongjian Zhou, Yichen Su, Zhiyuan Zhou, Feng Pan, Biaobing Jin, Cheng Song   +11 more
doaj   +1 more source

Spin-Orbit Torques in ferrimagnetic GdFeCo Alloys

, 2016
The spin-orbit torque switching of ferrimagnetic Gd$_x$(Fe$_{90}$Co$_{10}$)$_{100-x}$ films was studied for both transition metal (TM)-rich and rare earth (RE)-rich configurations.
Cheema, Suraj, Hellman, Frances, Iwata, Satoshi, Kato, Takeshi, Matsumura, Tomoya, Roschewsky, Niklas, Salahuddin, Sayeef   +6 more
core   +1 more source

Transistor‐Level Activation Functions via Two‐Gate Designs: From Analog Sigmoid and Gaussian Control to Real‐Time Hardware Demonstrations

Advanced Materials, EarlyView.
Screen gate‐based transistors are presented, enabling tunable analog sigmoid and Gaussian activations. The SA‐transistor improves MRI classification accuracy, while the GA‐transistor supports precise Gaussian kernel tuning for forecasting. Both functions are implemented in a single device, offering compact, energy‐efficient analog AI processing ...
Junhyung Cho, Youngmin Han, Won Woo Lee, Youngwoo Yoo, Kannan Udaya Mohanan, Chang‐Hyun Kim, Junhwan Choi, Young‐Joon Kim, Wonjun Shin, Hocheon Yoo   +9 more
wiley   +1 more source

Efficient micromagnetic modelling of spin-transfer torque and spin-orbit torque

AIP Advances, 2018
While the spin-diffusion model is considered one of the most complete and accurate tools for the description of spin transport and spin torque, its solution in the context of dynamical micromagnetic simulations is numerically expensive.
Claas Abert, Florian Bruckner, Christoph Vogler, Dieter Suess   +3 more
doaj   +1 more source

Spin–orbit torque generated by spin–orbit precession effect in Py/Pt/Co tri-layer structure

APL Materials, 2020
In this report, current-induced spin–orbit torques (SOTs) in a permalloy (Py)/Pt/Co tri-layer system are investigated. In addition to the conventional SOTs generated from the spin Hall effect in the Pt layer, we observed a distinct existence of ...
Y. Hibino, K. Hasegawa, T. Koyama, D. Chiba   +3 more
doaj   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

Detection of torque effects in Co/Pt via ferromagnetic resonance

AIP Advances, 2019
Charge-current-induced torque effects on the magnetization dynamics of ferromagnetic/metal bilayer is interesting from the aspect of fundamental physics as well as the applications in spintronic devices.
Yi-Chien Weng, C.-T. Liang, J. G. Lin
doaj   +1 more source