Target domains in nanometric Permalloy disks with columnar structure

Columnar structure of SV40 minichromosome

Like the sequence of the strongest 601 clone nucleosome of Lowary and Widom, the SV40 genome sequence contains tracks of YR dinucleotides separated by small integers of the 10.4n base series (10, 11, 21 and 30 bases). The tracks, however, substantially exceed the nucleosome DNA size and, thus, correspond to more extended structure columnar chromatin. The micrococcal nuclease digests of the SV40...

Micromagnetic modeling of spin-wave dynamics in exchange-biased permalloy disks

O. G. Heinonen,1,* D. K. Schreiber,2,3 and A. K. Petford-Long3 1Recording Heads Operation, Seagate Technology, 7801 Computer Avenue, Bloomington, Minnesota 55435, USA 2Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA 3Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA Received 26 Ap...

Engineering Magnetic Domain-Wall Structure in Permalloy Nanowires

The Role of Thermal Conduction in Accretion Disks with Outflows

In this work we solve the set of hydrodynamical equations for accretion disks in the spherical coordinates (r,θ,ϕ) to obtain the explicit structure along θ direction. We study a two-dimensional advective accretion disc in the presence of thermal conduction. We find self-similar solutions for an axisymmetric, rotating, steady, viscous-resistive disk. We show that the global structure of an advec...

Calculations of three-dimensional magnetic normal modes in mesoscopic permalloy prisms with vortex structure

Static flux-closure structures in three-dimensional 3D mesoscopic ferromagnets are known to differ quite significantly from their 2D counterparts. How these differences reflect in the dynamic properties of the magnetization is, to date, an open question. Micromagnetic simulations are employed to study the normal modes of magnetic oscillations in thick 60–80 nm rectangular Permalloy prisms with ...