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Ultralow-current density spin-torque diodes with high sensitivity
Applied Physics Letters, 2023Spin-torque diodes (STDs) offer the possibility of using spin torque to generate rectification voltage with promising applications in microwave detecting, energy harvesting, and neuromorphic computing. Here, we demonstrate a highly sensitive STD with ultralow current density based on a magnetic tunnel junction with perpendicular magnetic anisotropy. At
Like Zhang +7 more
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Comparative Analysis of High Torque Density PM Machines
2018 XIII International Conference on Electrical Machines (ICEM), 2018High torque density PM machines have attracted more and more attention recently, especially for the low-speed, high-torque application. In this paper, three high torque density PM machines are analyzed and compared, namely 12-slot/10-pole SPM, 16-pole transverse flux PM and 12-slot/22-pole flux modulation PM machines, with the specification of 30 kNm ...
Kangfu Xie +3 more
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High-torque density integrated electro-mechanical flight actuators
IEEE Transactions on Aerospace and Electronic Systems, 2002Electro-mechanical flight actuators (EMFAs) are core flight-critical vehicle components. Fly-by-wire or fly-by-light control of EMFAs is performed by flight management systems (flight, mission, propulsion, and integrated controls that manage any combination of specific flight, mission, and propulsion functions).
S.E. Lyshevski +2 more
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Torque-Balanced High-Density Steady States of Single-Component Plasmas
Physical Review Letters, 2005Electron plasmas in a Penning-Malmberg trap are compressed radially using a rotating electric field (the "rotating-wall technique"). For large electric fields, plasmas can be compressed over a broad range of frequencies. This permits access to a novel high-density regime in which outward transport is insensitive to plasma density.
J R, Danielson, C M, Surko
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Magnetic Materials for Coaxial Magnetic Gear Torque Density Enchainment
2020 21st International Symposium on Electrical Apparatus & Technologies (SIELA), 2020In this paper are analyzed different soft and hard magnetic materials for coaxial magnetic gears torque enhancement. Estimation of material properties impact over the magnetic gear input and output torques is implemented by finite element method model. The modelling is carried out by Ansys-Maxwell software.
Valentin Mateev +2 more
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High-Density NAND-Like Spin Transfer Torque Memory With Spin Orbit Torque Erase Operation
IEEE Electron Device Letters, 2018We present a NAND-like spintronics memory (NAND-SPIN) device for high-density non-volatile memory applications. Fast erasing and programming of magnetic tunnel junction (MTJ) are implemented with two unidirectional currents generating spin orbit torque (SOT) and spin transfer torque (STT), respectively.
Zhaohao Wang +6 more
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A Limited Angle Torque Motor Hybrid Structure to Improve Torque Density
The transactions of The Korean Institute of Electrical Engineers, 2022Jin-Yeong Shin +5 more
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A High Torque Density MEMS Magnetic Induction Machine
2001Most micro-scale electric and magnetic machines developed over the last decade lack the torque and power density to support many practical applications. The micro-scale magnetic induction machine reported here attempts to transcend this practicality barrier by offering a torque density exceeding 15% of that exhibited by macro-scale magnetic machines ...
H. Köşer +3 more
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High torque density induction motor with integrated magnetic gear
2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016This paper presents a design process to integrate a magnetic gear with an induction machines. The resulting integrated machine has the potential to offer a high torque density with asynchronous speed characteristics. Such characteristics may be desirable for applications that require sensorless operation or may be subject to severe backlash or jamming.
Dalia Zaky Abdelhamid, Andrew M. Knight
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Nanostructured insulation for high torque density electric propulsion motors
2017 IEEE Electric Ship Technologies Symposium (ESTS), 2017It has been identified in ONR Next Generation Integrated Power System (NGIPS) Roadmap that fundamental research in dielectric insulation research enables payload efficiency and affordable high power density of integrated electric propulsion motors.
Hiep Nguyen +6 more
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