Ground state of the magnetization of nanowires |
| |
Authors: | A A Ivanov V A Orlov G O Patrushev N N Podol’skii |
| |
Affiliation: | 1.Siberian Federal University,Krasnoyarsk,Russia;2.Krasnoyarsk State Pedagogical University,Krasnoyarsk,Russia |
| |
Abstract: | Analytical and numerical methods have been used to study the ground state of magnetization of a nanowire consisting of ferromagnetic
crystallites that are coupled via exchange interactions. The random nature of the field of crystallographic anisotropy has
been taken into account. It is shown that the magnetization of a nanowire is divided into weakly interacting regions of magnetization
called blocks. Such characteristics, as the average size of a magnetic block, its effective anisotropy constant, and their
dependence on the size of crystallites have been calculated analytically and simulated numerically in a two-angle approximation.
The coordinate dependences of the magnetization dispersion at the edge and in the bulk of the magnet have been determined.
It is shown that the functional dependence of the dispersion on the coordinate changes with moving away from the free edge
of the nanowire. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|