Results 51 to 60 of about 900,366 (207)

Proximity‐Tuned Magnetic and Transport Anomalies in All‐Epitaxial Fe5−xGeTe2/WSe2 Van der Waals Heterostructures

Advanced Functional Materials, EarlyView.
All‐epitaxial and scalable ferromagnetic/non‐magnetic Fe5−xGeTe2/WSe2 van der Waals (vdW) heterostructures exhibiting room‐temperature magnetism and perpendicular magnetic anisotropy (PMA) are realized. The system displays proximity‐tuned magnetic anisotropy, thickness‐dependent unconventional Hall effects, and temperature‐dependent sign reversal of ...
Hua Lv, Tauqir Shinwari, Kacho Imtiyaz Ali Khan, Jens Herfort, Chen Chen, Joan M. Redwing, Mehak Loyal, Gerhard Jakob, Mathias Kläui, Achim Trampert, Bernat Mundet, Belén Ballesteros, Manfred Ramsteiner, Roman Engel‐Herbert, Michael Hanke, João Marcelo J. Lopes   +15 more
wiley   +1 more source

Spin-orbit torque from a ferromagnetic metal

, 2019
The switching of magnetization by current-induced spin-orbit torque (SOT) has potential applications for energy-efficient spintronic devices. In the past, most conventional works have been focused on SOT in heavy metals. Here the SOT from a ferromagnetic
Liu, Yuxiang, Razavi, Seyed Armin, Wu, Hao, Wong, Kin L., Yin, Gen, Li, Xiang, Shao, Qiming, Wang, Kang L.   +7 more
core   +1 more source

Efficient Magnetization Switching Driven by Orbital Torque in Light 3d Transition‐Metal Nitrides

Advanced Functional Materials, EarlyView.
Efficient magnetization switching is demonstrated through orbital torque generated from light 3d transition‐metal nitride. Transition‐metal nitrides are established as effective sources of orbital angular momentum for current‐induced switching, highlighting their potential for low‐power next‐generation orbitronic devices beyond conventional heavy‐metal‐
Gaurav K. Shukla, Yoshio Miura, Mayank K. Singh, Shinji Isogami   +3 more
wiley   +1 more source

Modulation of Surface‐Associated Transport in (Bi1‐xSbx)2Te3 via Battery‐ Inspired Solid‐State Iontronic Gating

Advanced Functional Materials, EarlyView.
Iontronic gating in a battery‐inspired device modulates the relative weight of surface‐associated and bulk‐like transport fingerprints in (Bi1‐xSbx)2Te3, resulting in phenomenological valve‐like transport behavior. The strongest WAL‐associated coherent transport signatures emerge near the transport‐defined carrier compensation regime at ultra‐low gate ...
Gabriel Vinicius de Oliveira Silva, Reza Asadi, He Ren, Rabiul Islam, Jagadeesh Moodera, Guo‐Xing Miao   +5 more
wiley   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

Advanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford, Anne Flechsig, Shilei Ding, Emir Karadža, Niklas Kercher, Tobias Goldenberger, Elisabeth Müller, Pietro Gambardella, Laura J. Heyderman, Aleš Hrabec   +9 more
wiley   +1 more source

A Comprehensive Study of Temperature and Its Effects in SOT-MRAM Devices

Micromachines, 2023
We employ a fully three-dimensional model coupling magnetization, charge, spin, and temperature dynamics to study temperature effects in spin-orbit torque (SOT) magnetoresistive random access memory (MRAM).
Tomáš Hadámek, Nils Petter Jørstad, Roberto Lacerda de Orio, Wolfgang Goes, Siegfried Selberherr, Viktor Sverdlov   +5 more
doaj   +1 more source

Spin Hall Magnetoresistance and Spin–Orbit Torque Efficiency in Pt/FeCoB Bilayers [PDF]

, 2022
The spin Hall magnetoresistance (SMR) of Pt/FeCoB bilayers with in-plane magnetocrystalline anisotropy was analyzed with respect to a second-order effect in the sensing current, which acts, through the spin Hall effect in Pt, as a torque on the ...
Grochot, Krzysztof, Magni, Alessandro, Ocker, Berthold, Kuepferling, Michaela, Basso, Vittorio, Skowronski, Witold, Langer, Juergen, Lazarski, Stanislaw, Meggiato, Nicola, Sola, Alessandro, Soares, Gabriel, Khanjani, Mehran Vafaee, Vittorio Basso, Gabriel Soares, Berthold Ocker, Witold Skowronski, Michaela Kuepferling, Stanislaw Lazarski, Juergen Langer, Alessandro Sola, Alessandro Magni, Nicola Meggiato, Mehran Vafaee Khanjani, Krzysztof Grochot   +23 more
core   +1 more source

Spin-orbit torques due to extrinsic spin-orbit scattering of topological insulator surface states: out-of-plane magnetization

JPhys Materials, 2022
The origins of the spin-orbit torque (SOT) at ferromagnet/topological insulator interfaces are incompletely understood. The theory has overwhelmingly focussed on the Edelstein effect due to the surface states in the presence of a scalar scattering ...
Mohsen Farokhnezhad, Reza Asgari, Dimitrie Culcer   +2 more
doaj   +1 more source

Giant Orbital Rashba–Edelstein Effect in Crystalline Cu2O/Cu Heterostructures

Advanced Materials, EarlyView.
An enhanced orbital Rashba–Edelstein effect is demonstrated in a crystalline Cu2O/Cu heterostructure, compared to naturally oxidized CuOx structures, highlighting the critical role of crystallinity and interface control in orbital torque generation. The resulting spin torque conductivity exceeds that of Pt, indicating the potential of orbital torque ...
San Ko, Jaimin Kang, Su Jae Kim, Hanhwi Jang, Do‐Kyeong Nam, Minseok Kang, Sunghoon Kim, Yeon Sik Jung, Se‐Young Jeong, Kab‐Jin Kim, Byong‐Guk Park   +10 more
wiley   +1 more source

Effect of interfacial insertion layers on the spin-orbit torque in W(O)|CoFeB heterostructures

, 2019
We report on an experimental investigation of spin-orbit torque (SOT) in W(O)∣CoFeB heterostructures where a thin insertion layer with negligible spin-orbit coupling is inserted at the W(O)∣CoFeB interface.
Jiang, Y., Parkin, S. ; https://orcid.org/, Garg, C., Yang, S., Zhang, J., Hughes, B., Phung, T.   +6 more
core   +1 more source