DIPOLE-EXCHANGE SPIN WAVES IN A FERROMAGNETIC NANOTUBE

被引：4

作者：

Gorobets, Yu. I. ^{[1
]}

Kulish, V. V. ^{[2
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Magnetism, 36-b Vernadskogo Str, UA-03142 Kiev, Ukraine

[2] Natl Tech Univ Ukraine, Kyiv Politech Inst, Dept Gen & Expt Phys, UA-03056 Kiev, Ukraine

来源：

UKRAINIAN JOURNAL OF PHYSICS | 2014年 / 59卷 / 05期

关键词：

spin wave; nanomagnetics; ferromagnetic nanotube; dipole-exchange theory;

D O I：

10.15407/ujpe59.05.0541

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spin waves in a cylindrical ferromagnetic nanotube are studied. A nanotube with an external magnetic field applied parallel to its symmetry axis is considered. A linearized Landau-Lifshitz equation in the magnetostatic approximation is used with regard for the magnetic dipoledipole interaction, exchange interaction, and anisotropy effects. As a result, the dispersion relation and the radial wavenumber spectrum for spin waves in the above-described nanotube are found. From the radial wavenumber spectrum, limitations on the transverse-angular modes are defined.

引用

页码：541 / 546

页数：6

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