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Barium hexaferrites [M-type BaFe12O19(BaM)] are of great interest for microwave devices, permanent magnets and magnetic recording materials in virtue of their fairly large magnetocrystalline anisotropy, high Curie temperature, relatively large magnetization [1]. As a conventional permanent magnetic material, the sintering temperature of barium hexaferrites without additives could reach up to 1300...
A 2D-3D hybrid finite element method (FEM) approach is proposed for fast analysis of eddy current loss in magnets of permanent magnetic synchronous motors (PMSM) driven by a pulse width modulation (PWM) inverter. A voltage-source PWM inverter circuit coupled 3D FEM model of a PMSM was built with the commercial FEM code JMAG and the eddy current loss in the magnets of the PMSM was calculated which...
The aim of the paper is to report on domain wall (DW) motion driven by nanosecond-long current pulses in L-shaped permalloy nanowire fabricated by electron-beam lithography. The nanowires are 40 nm thick, with widths between 100 and 300 nm. In this experiments, a single DW is first nucleated in the bend of the L-shaped wire using a sequence of magnetic fields. The presence of the DW between contacts...
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