Results 31 to 40 of about 2,202 (211)

Enhanced spin–orbit torques by oxygen incorporation in tungsten films

Nature Communications, 2016
When interfaced with a current-carrying heavy metal, spin orbit effects can generate a torque on the magnetization of a ferromagnet, understood as a bulk effect.
Kai-Uwe Demasius, Timothy Phung, Weifeng Zhang, Brian P. Hughes, See-Hun Yang, Andrew Kellock, Wei Han, Aakash Pushp, Stuart S. P. Parkin   +8 more
doaj   +1 more source

Three‐Dimensional Anomalous Hall Sensing Enabled By Spin–Orbit Torque Driven Domain Reconfiguration In Chiral Multilayers

Advanced Functional Materials, EarlyView.
A three‐dimensional magnetic field sensor is realized in chiral W/CoFeB/MgO multilayers, where spin–orbit torques reversibly reconfigure homochiral stripe domains. The symmetry of the torque enables offset‐free in‐plane sensing, while the reproducible domain reconfiguration extends the linear out‐of‐plane range. An anomalous Hall readout delivers large‐
Sabri Koraltan, Rahul Gupta, Reshma Peremadathil Pradeep, Fabian Kammerbauer, Iryna Kononenko, Klemens Prügl, Michael Kirsch, Bernd Aichner, Santiago Helbig, Florian Bruckner, Claas Abert, Andrada Oana Mandru, Armin Satz, Gerhard Jakob, Hans Josef Hug, Mathias Kläui, Dieter Suess   +16 more
wiley   +1 more source

Non-relativistic torque and Edelstein effect in non-collinear magnets

Nature Communications
The Edelstein effect is the origin of the spin-orbit torque: a current-induced torque that is used for the electrical control of ferromagnetic and antiferromagnetic materials.
Rafael González-Hernández, Philipp Ritzinger, Karel Výborný, Jakub Železný, Aurélien Manchon   +4 more
doaj   +1 more source

Spin pumping and large field-like torque at room temperature in sputtered amorphous WTe2−x films

APL Materials, 2020
We studied the spin-to-charge and charge-to-spin conversion at room temperature in sputtered WTe2−x (x = 0.8) (t)/Co20Fe60B20(6 nm) heterostructures.
Yihong Fan, Hongshi Li, Mahendra DC, Thomas Peterson, Jacob Held, Protyush Sahu, Junyang Chen, Delin Zhang, Andre Mkhoyan, Jian-Ping Wang   +9 more
doaj   +1 more source

Impact of inherent energy barrier on spin-orbit torques in magnetic-metal/semimetal heterojunctions

Nature Communications, 2023
Spintronic devices are based on heterojunctions of two materials with different magnetic and electronic properties. Although an energy barrier is naturally formed even at the interface of metallic heterojunctions, its impact on spin transport has been ...
Tenghua Gao, Alireza Qaiumzadeh, Roberto E. Troncoso, Satoshi Haku, Hongyu An, Hiroki Nakayama, Yuya Tazaki, Song Zhang, Rong Tu, Akio Asami, Arne Brataas, Kazuya Ando   +11 more
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Development of a Three‐Axis Planar Hall Magnetoresistance Sensor Using a Superparamagnetic Nanoparticle‐Based Flux Guide

Advanced Functional Materials, EarlyView.
A printed superparamagnetic nanoparticle‐based flux guide enables the realization of a hysteresis‐free three‐axis magnetic sensor. This innovative architecture efficiently redirects out‐of‐plane fields to planar sensing elements, facilitating simultaneous vector detection without complex reset protocols.
Changyeop Jeon, Mijin Kim, Keonmok Kim, Byeonghwa Lim, Bibhutibhusan Nayak, Youngdo Jung, Bo‐Yeon Lee, Taehyeong Jeon, Jinwoo Kim, Sunjong Oh, CheolGi Kim   +10 more
wiley   +1 more source

Voltage-circuit analysis in spin-torque ferromagnetic resonance [PDF]

APL Materials
Spin–orbit torque (SOT) enables efficient control of magnetization via spin–orbit coupling effects, so that accurate quantification of its efficiency is crucial for the development of spin–orbit devices.
Ki Hyuk Han, Deok Hyun Yun, Seung-Hun Jang, Jeong Ung Ahn, Young-Jun Nah, YongJin Kim, Min-Gu Kang, Seokmin Hong, Hyun Cheol Koo, OukJae Lee   +9 more
doaj   +1 more source

Thermally Robust Spin–Orbit Torque Switching in Low‐Resistivity Mo‐Alloyed β‐W Heterostructures

Advanced Functional Materials, EarlyView.
Mo‐alloyed β‐W heterostructures exhibit enhanced spin‐orbit torque efficiency, reduced resistivity and switching current density, and reliable operation from −50 to +150°C. The optimized W87.3Mo12.7 device achieves high spin Hall conductivity with thermal robustness, highlighting its potential for energy‐efficient magnetic memory and automotive ...
Han Seok Ko, Hyun Ju Lee, Jeong Kyu Lee, Han Sol Kim, Min Seok Kim, Quynh Anh T. Nguyen, Sonny H. Rhim, Young Keun Kim   +7 more
wiley   +1 more source

Dependence of current-induced switching threshold on composition gradient width in Si/Al-integrated perpendicular magnetic films [PDF]

AIP Advances
We report spin–orbit torque switching in perpendicularly magnetized Pt(3.1 nm)/Co(0.95 nm)/Pt(3.1 nm) trilayer using Si/Al composition-graded materials (CGMs).
Sayuri Takagi, Kazuto Yamanoi, Yukio Nozaki   +2 more
doaj   +1 more source