Results 21 to 30 of about 602,440 (381)

Room temperature magnetization switching in topological insulator-ferromagnet heterostructures by spin-orbit torques [PDF]

open access: yesNature Communications, 2017
Topological insulators with spin-momentum-locked topological surface states are expected to exhibit a giant spin-orbit torque in the topological insulator/ferromagnet systems.
Yi Wang   +11 more
semanticscholar   +1 more source

Classification of dynamical switching regimes in a three-layered ferromagnetic nanopillar governed by spin-polarized injection current and external magnetic field. II. Perpendicular anisotropy [PDF]

open access: yesКомпьютерные исследования и моделирование, 2016
The mathematical model of a three-layered Co/Cu/Co nanopillar for MRAM cell with one fixed and one free layer was investigated in the approximation of uniformly distributed magnetization.
Natalia Vladimirovna Ostrovskaya   +2 more
doaj   +1 more source

Sol-gel sinteza i magnetne osobine nanočestičnog hematita / Sol-gel synthesis and magnetic properties of hematite (α-Fe2O3) nanoparticles

open access: yesVojnotehnički Glasnik, 2010
U radu je prikazano istraživanje magnetnih karakteristika nanočestičnog feri-oksida, α-Fe2O3 (hematita), koji ispoljava superparamagnetne karakteristike tj. superparamagnetizam.
Marin M. Tadić, Nada M. Čitaković
doaj   +1 more source

Online Magnetization Trajectory Prediction and Current Control for a Variable-Flux Permanent Magnet Machine

open access: yesIEEE Access, 2020
Online magnetization current control is a critical concern of the variable-flux permanent magnet machine control. Increasing the magnetization speed benefits the machine system, which reduces manipulation losses and mechanical impact.
Junhua Chen, Haiyang Fang, Ronghai Qu
doaj   +1 more source

Giant orbital magnetoelectric effect and current-induced magnetization switching in twisted bilayer graphene [PDF]

open access: yesNature Communications, 2019
Recently, quantum anomalous Hall effect with spontaneous ferromagnetism was observed in twisted bilayer graphenes (TBG) near 3/4 filling. Importantly, it was observed that an extremely small current can switch the direction of the magnetization.
Wen-Yu He   +3 more
semanticscholar   +1 more source

The magnetism of permanent magnets [PDF]

open access: yesJournal of the Institution of Electrical Engineers, 1913
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openaire   +2 more sources

Mechanochemical synthesis and magnetic properties of maghemite

open access: yesVojnotehnički Glasnik, 2011
This work presents the results of an investigation on maghemite (γ -Fe2O3) nanoparticles magnetic properties, which show superparamagnetic behavior i.e. superparamagnetism. Nanoscale maghemite samples were obtained by the mechanochemical method.
Marin M. Tadić, Nada M. Čitaković
doaj   +1 more source

Paleomagnetism of Phanerozoic Geological Complexes in Tuva

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
The authors have investigated palaeomagnetically the Ordovician, Upper Devonian and Lower Carboniferous strata in Tuva. In the rocks, postfolding secondary and prefolding magnetization components were isolated.
Коваленко Д.В.   +3 more
doaj   +1 more source

Droplet Manipulation under a Magnetic Field: A Review

open access: yesBiosensors, 2022
The magnetic manipulation of droplets is one of the emerging magnetofluidic technologies that integrate multiple disciplines, such as electromagnetics, fluid mechanics and so on.
Gui-Ping Zhu   +4 more
doaj   +1 more source

Spatially and time-resolved magnetization dynamics driven by spin-orbit torques. [PDF]

open access: yesNature Nanotechnology, 2017
Current-induced spin-orbit torques are one of the most effective ways to manipulate the magnetization in spintronic devices, and hold promise for fast switching applications in non-volatile memory and logic units.
M. Baumgartner   +13 more
semanticscholar   +1 more source

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