Hysteresis Modelling in Ferromagnetic Composites
نویسندگان
چکیده
منابع مشابه
Ferromagnetic resonance in ϵ-Co magnetic composites.
We investigate the electromagnetic properties of assemblies of nanoscale ϵ-cobalt crystals with size range between 5 to 35 nm, embedded in a polystyrene matrix, at microwave (1-12 GHz) frequencies. We investigate the samples by transmission electron microscopy imaging, demonstrating that the particles aggregate and form chains and clusters. By using a broadband coaxial-line method, we extract t...
متن کاملHysteresis and the dynamic phase transition in thin ferromagnetic films.
Hysteresis and the nonequilibrium dynamic phase transition in thin magnetic films subject to an oscillatory external field have been studied by Monte Carlo simulation. The model under investigation is a classical Heisenberg spin system with a bilinear exchange anisotropy Lambda in a planar thin film geometry with competing surface fields. The film exhibits a nonequilibrium phase transition betw...
متن کاملMagnetic properties of metallic ferromagnetic nanoparticle composites
Magnetic properties of nanoparticle composites, consisting of aligned ferromagnetic nanoparticles embedded in a nonmagnetic matrix, have been determined using a model based on phenomenological approaches. Input materials parameters for this model include the saturation magnetization (M s), the crystal anisotropy field (Hk), a damping parameter ~a! that describes the magnetic losses in the parti...
متن کاملMicromagnetic modelling of ferromagnetic cones
Using micromagnetic modeling, we calculate numerically the magnetization reversal of soft permalloy cones of height and diameter ≤ 100nm. By varying the cone height and the base diameter in steps of 10nm and 5nm, respectively, we map the remanent states systematically. We observe reversal mechanisms with remanent configurations ranging from single domains at small diameters, through buckle stat...
متن کاملThe coercive force and rotational hysteresis of elongated ferromagnetic particles
2014 The coercive force of an infinite ferromagnetic cylinder is calculated as a function of the radius and of the inclination of the axis to the applied field. For this calculation it is assumed that only curling and rotation in unison take place ; and that whenever the curling is associated with a discontinuous jump, the magnetization is brought to the lower energy state given by Stoner and W...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advanced Composites Letters
سال: 2004
ISSN: 2633-366X,2633-366X
DOI: 10.1177/096369350401300109