Results 31 to 40 of about 324 (262)
Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses
Advanced Materials, EarlyView.Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami +15 more
wiley +1 more source
Measurement + ControlHall thrusters are electric propulsion devices that are widely used in modern spaceflight. To obtain the critical corrosion data effectively and accurately during long-life tests of Hall thrusters, this paper proposes an automated corrosion measurement ...
Zhi-Feng Zhou +2 more
doaj +1 more source
Numerical Study of Hall Thruster Plume and Sputtering Erosion
Journal of Applied Mathematics, 2012 Potential sputtering erosion caused by the interactions between spacecraft and plasma plume of Hall thrusters is a concern for electric propulsion. In this study, calculation model of Hall thruster’s plume and sputtering erosion is presented.
Li Yan +3 more
doaj +1 more source
Fluid simulation on effect of background magnetic field on plasma characteristics in a Hall thruster
AIP Advances, 2022 Herein, the effect of the background magnetic field on plasma characteristics in a Hall thruster is numerically investigated using DUT-HTFS [Li et al., AIP Adv. 12, 015117 (2022)], an integrated fluid simulation platform on Hall thruster plasmas.
Nannan Li +3 more
doaj +1 more source
Radial distribution of electrons rotation moment in hall effect and plasma-ion thrusters
Авіаційно-космічна техніка та технологія, 2021 The subject matter of the article is the radial distribution of electrons movement parameters inside electric propulsion thrusters with closed electrons drift.
Zongshuai Guo
doaj +1 more source
NASA's Hall thruster program [PDF]
37th Joint Propulsion Conference and Exhibit, 2001 NASA's Hall thruster program has base research and focused development efforts in support of the Advanced Space Transportation Program, Space-Based Program, and various other programs. The objective of the base research is to gain an improved understanding of the physical processes and engineering constraints of Hall thrusters to enable development of ...
Robert Jnkovsky +7 more
openaire +1 more source
Advanced Materials, EarlyView.Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam +6 more
wiley +1 more source
Advanced Materials, EarlyView.We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang +20 more
wiley +1 more source
Particle simulation of a Hall thruster plasma plume
AIP AdvancesEffects of the propellant, propellant mass-flow rate, and discharge voltage on the characteristics of the plume of small Hall thrusters are studied using a particle-in-cell Monte Carlo collisions program.
Zhixin Li +4 more
doaj +1 more source
Review of Plasma-Induced Hall Thruster Erosion
Applied Sciences, 2020 The Hall thruster is a high-efficiency spacecraft propulsion device that utilizes plasma to generate thrust. The most common variant of the Hall thruster is the stationary plasma thruster (SPT).
Nathan P. Brown, Mitchell L. R. Walker
doaj +1 more source