Results 61 to 70 of about 41,920 (290)

Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation

Advanced Functional Materials, EarlyView.
A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah, Taehoon Kwon, Hana Kim, Shin‐Ki Hong, Seung Won Lee, Se Hee Lee, Ik‐Su Kwon, Masahiro Kozako, Minhee Kim, Seunggun Yu   +9 more
wiley   +1 more source

Spin Hall effects in metallic antiferromagnets – perspectives for future spin-orbitronics

AIP Advances, 2016
We investigate angular dependent spin-orbit torques from the spin Hall effect in a metallic antiferromagnet using the spin-torque ferromagnetic resonance technique.
Joseph Sklenar, Wei Zhang, Matthias B. Jungfleisch, Wanjun Jiang, Hilal Saglam, John E. Pearson, John B. Ketterson, Axel Hoffmann   +7 more
doaj   +1 more source

Time-Dependent Spintronic Transport and Current-Induced Spin Transfer Torque in Magnetic Tunnel Junctions

, 2004
The responses of the electrical current and the current-induced spin transfer torque (CISTT) to an ac bias in addition to a dc bias in a magnetic tunnel junction are investigated by means of the time-dependent nonquilibrium Green function technique.
A. Asamitsu, A. Brataas, A.P. Jauho, Baigeng Wang, Biao Jin, C. Heide, C. Heide, C. Heide, E.B. Myers, E.B. Myers, G.A. Prinz, Gang Su, Gang Su, J. Grollier, J. Miltat, J.-E. Wegrowe, J.A. Katine, J.C. Slonczewski, J.C. Slonczewski, J.R. Tucker, J.S. Moodera, J.S. Moodera, J.Z. Sun, J.Z. Sun, K.B. Hathaway, L. Berger, L. Berger, M. Tsoi, M.D. Stiles, M.P. Anantram, Qing-Rong Zheng, S. Zhang, S.A. Wolf, Tai-Kai Ng, X. Waintal, X. Waintal, X. Waintal, Y. Tserkovnyak, Ya.B. Bazaliy, Ya.B. Bazaliy, Zhen-Gang Zhu, Zhen-Gang Zhu, Zhen-Gang Zhu   +42 more
core   +1 more source

Sign Reversal of Spin‐Transfer Torques

Advanced Science
AbstractSpin‐transfer torque (STT) and spin‐orbit torque (SOT) form the core of spintronics, allowing for the control of magnetization through electric currents. While the sign of SOT can be manipulated through material and structural engineering, it is conventionally understood that STT lacks a degree of freedom in its sign.
Dae‐Yun Kim, Qurat ul Ain, Yune‐Seok Nam, Ji‐Sung Yu, Seong‐Hyub Lee, Jun‐Young Chang, Kitae Kim, Woo‐Young Shim, Duck‐Ho Kim, Soong‐Geun Je, Byoung‐Chul Min, Sonny H. Rhim, Sug‐Bong Choe   +12 more
openaire   +3 more sources

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Phenomenology of Current-Induced Spin-Orbit Torques

, 2013
Currents induce magnetization torques via spin-transfer when the spin angular momentum is conserved or via relativistic spin-orbit coupling. Beyond simple models, the relationship between material properties and spin-orbit torques is not known.
Brataas, Arne, Hals, Kjetil M. D.
core   +1 more source

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Classification tasks using input driven nonlinear magnetization dynamics in spin Hall oscillator

Scientific Reports, 2023
The inherent nonlinear magnetization dynamics in spintronic devices make them suitable candidates for neuromorphic hardware. Among spintronic devices, spin torque oscillators such as spin transfer torque oscillators and spin Hall oscillators have shown ...
John Rex Mohan, Arun Jacob Mathew, Kazuma Nishimura, Ruoyan Feng, Rohit Medwal, Surbhi Gupta, Rajdeep Singh Rawat, Yasuhiro Fukuma   +7 more
doaj   +1 more source

Resonance Measurement of Nonlocal Spin Torque in a Three-Terminal Magnetic Device

, 2012
A pure spin current generated within a nonlocal spin valve can exert a spin transfer torque on a nanomagnet. This nonlocal torque enables new design schemes for magnetic memory devices that do not require the application of large voltages across tunnel ...
Buhrman, R. A., Cui, Yong-Tao, Liu, Luqiao, Ralph, D. C., Sun, J. Z., Swander, A., Wang, Chen, Xue, Lin   +7 more
core   +1 more source

Recent Developments in Spin Transfer Torque MRAM

physica status solidi (RRL) – Rapid Research Letters, 2017
Spin transfer torque (STT) switching‐based magnetic random access memory (MRAM) is gaining significant industrial and academic attention due to its potential application as a non‐volatile memory device in computing devices, smartphones, and so on. STT‐MRAM devices with in‐plane magnetization configuration have been marketed as niche products.
Sbiaa, Rachid, Piramanayagam, S. N.
openaire   +2 more sources