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作者:G. Sitbon , R.W. Chantrell , W. Schwarzacher
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2020, Vol.503
摘要:Abstract(#br)The magnetic anisotropy of single-domain magnetic nanoparticles can influence their behaviour significantly even at temperatures above the blocking temperature as conventionally defined. We compare the magnetic properties of such nanoparticles that are free to r...
作者:R.W. Chantrell , T.G. Woodcock ...
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2019, Vol.486
摘要:Abstract(#br)The macroscopic magnetic properties of nanocrystalline alloys are strongly dependent on microstructural and micromagnetic inhomogeneities along with intergranular interactions. In particular, magnetic susceptibility is sensitive to these factors and frequently used f...
作者:... A. Stancu , I. Panagiotopoulos , R.W. Chantrell
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2019, Vol.486
摘要:Abstract(#br)The logarithmic relaxation of the magnetisation in recording media under different applied negative fields can collapse onto an universal decay curve, by applying a scaling law based on the fluctuation field H f , which describes the time-dependent magnetic behaviour...
作者:... J. Chureemart , R.W. Chantrell , P. Chureemart
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2019, Vol.484, pp.238-244
摘要:Abstract(#br)We propose a theoretical model to study the spin transport, particularly the interfacial resistance in a noncollinear system with a diffuse interface. The realistic interface region arising from the sputtering process is first modeled by using Fick’s law. Subseq...
作者:R.W. Chantrell , O.D. Arbeláez-Echeverri
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2017, Vol.424, pp.451-458
摘要:Abstract(#br)Thermal and hysteretic magnetic properties of La 2 / 3 Ca 1 / 3 MnO 3 nanoparticles were studied using Monte Carlo simulations, with emphasis on the influence of anisotropy. In this work, several nanoparticle sizes ranging from 2.32 to 11.58 nm were analyzed and...
作者:... R. Cuadrado , P. Chureemart , R.W. Chantrell
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 2017, Vol.443, pp.287-292
摘要:Abstract(#br)We present multiscale calculations to describe the spin transport behavior of the Co/Cu bilayer structure including the effect of the interface. The multiscale approach introduces the connection between the ab initio calculation used to describe the electronic struct...
作者:... A. Manabe , M. Ito , R.W. Chantrell
来源:[J].Scripta Materialia(IF 2.821), 2018, Vol.148, pp.56-62
摘要:Abstract(#br)We describe the process of multiscale modelling of magnetic materials, based on atomistic models coupled parametrically to micromagnetic calculations. At the atomistic lengthscale we use Spin Dynamics (SD) to study switching mechanisms, using structures predicted by ...
作者:... A. Manabe , M. Ito , R.W. Chantrell
来源:[J].Scripta Materialia(IF 2.821), 2018, Vol.154, pp.266-272
摘要:Abstract(#br)We describe the process of multiscale modelling of magnetic materials, based on atomistic models coupled parametrically to micromagnetic calculations. At the atomistic lengthscale we use Spin Dynamics (SD) to study switching mechanisms, using structures predicted by ...
作者:R.W. Chantrell , J. Barker ...
来源:[J].Physica B: Physics of Condensed Matter(IF 1.327), 2016, Vol.486, pp.173-176
摘要:Abstract(#br)We investigate long-time thermal activation behaviour in magnetic particle chains of variable length. Chains are modelled as Stoner–Wohlfarth particles coupled by dipolar interactions. Thermal activation is described as a hopping process over a multidimensional ...
作者:R.W. Chantrell , N.S. Walmsley ...
来源:[J].Journal of Magnetism and Magnetic Materials(IF 1.826), 1999, Vol.196, pp.118-119
摘要:Abstract(#br)Model calculations of the initial susceptibility of interacting fine particles are presented. It is found that the interactions dramatically reduce the initial susceptibility and increase the temperature peak in the susceptibility/temperature plot. In addition, our i...

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