Results 11 to 20 of about 1,676 (174)
Geophysical Journal International, 2020 SUMMARYUpon cooling, most rocks acquire a thermoremanent magnetization (TRM); the cooling rate at which this happens not only affects palaeointensity estimates, but also their unblocking temperatures in stepwise thermal demagnetization experiments, which is important, for example, to estimate volcanic emplacement temperatures. Traditional single-domain
Thomas A Berndt +3 more
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Journal of Magnetism and Magnetic Materials, 2023 Voltage-controlled magnetoresistive random access memory (VC-MRAM) based on voltage-induced dynamic switching in magnetic tunnel junctions (MTJs) is a promising ultimate non-volatile memory with ultralow power consumption. However, the dynamic switching in a conventional MTJ is accompanied by a relatively high write error rate (WER), hindering the ...
Rie Matsumoto +2 more
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IEEE Access, 2021 Due to its high power densities and compact dimensions, the axial flux coreless permanent magnet synchronous generator (PMSG) is used in a wide range of areas such as wind turbines and electric vehicles.
Mehmet Recep Minaz, Eyyup Akcan
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Spin-orbit enhanced demagnetization rate in Co/Pt-multilayers
Applied Physics Letters, 2014 In order to explore the role of enhanced spin-orbit interactions on the laser-induced ultrafast magnetization dynamics, we performed a comparative study on cobalt thin films and Co/Pt multilayers. We show that the presence of the Co/Pt interfaces gives rise to a three-fold faster demagnetization upon femtosecond laser heating.
Kuiper, K.C. +6 more
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Ultrafast Demagnetization of Iron Induced by Optical versus Terahertz Pulses
Physical Review X, 2021 We study ultrafast magnetization quenching of ferromagnetic iron following excitation by an optical versus a terahertz pump pulse. While the optical pump (photon energy of 3.1 eV) induces a strongly nonthermal electron distribution, terahertz excitation (
A. L. Chekhov +9 more
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Micromachines, 2022 This study examined micro-alternators with two different housing structures––an uncoated shell and a shell coated with an iron-based amorphous-alloy soft magnetic material.
Chang-Hung Hsu
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Experimental Study on Magnetization and Demagnetization Characteristics of X70 Steel Pipe
Shiyou jixie, 2022 The remanence in the pipe not only affects the detection accuracy, but also accelerates the corrosion rate in the pipe. In order to study the magnetization and demagnetization characteristics of X70 steel pipe, based on the analysis of material ...
Song Fulin, Zhao Hong
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Design and analysis of 12 MW offshore wind turbine
Energy Reports, 2022 Permanent magnet synchronous motors are widely used in various fields for the advantages of high power density, high efficiency and high reliability.
Junqiang Xing +4 more
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Electromagnetic alternators with composite amorphous alloy shell for improving characteristics
AIP Advances, 2023 In this study, a magnetic casing encapsulating a generator is used to improve the electromagnetic and power characteristics of the generator. Two types of two-pole AC generators are proposed: one is a bare-bonded (NC) type and the other is an iron-based ...
Chang-Hung Hsu
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Pump–probe x-ray microscopy of photo-induced magnetization dynamics at MHz repetition rates
Structural Dynamics, 2023 We present time-resolved scanning x-ray microscopy measurements with picosecond photo-excitation via a tailored infrared pump laser at a scanning transmission x-ray microscope.
Kathinka Gerlinger +13 more
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