共 50 条
Competing Magnetocrystalline and Shape Anisotropy in Thin Nanoparticles
被引:0
|作者:
Kuzma, Dominika
[1
]
Pastukh, Oleksandr
[1
]
Zielinski, Piotr
[1
]
机构:
[1] Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland
来源:
关键词:
nanolithography;
magnetic nanoparticles;
domain walls;
vortices;
magnonic structures;
MAGNETIC NANOPARTICLES;
FILMS;
D O I:
10.3390/cryst14040375
中图分类号:
O7 [晶体学];
学科分类号:
0702 ;
070205 ;
0703 ;
080501 ;
摘要:
Micromagnetic computations were performed to predict the magnetisation maps in thin elliptically shaped nanoparticles under a variable external magnetic field. Two materials were compared as the constituents of the nanoparticles: permalloy as an example of an isotropic magnet and cobalt, i.e., a hard magnetic material marked with a single easy axis. The interplay of the shape and magnetocrystalline anisotropy gives rise to a variety of switching scenarios, which may be of interest in designing memory storage devices. A fairly periodic shape-induced superlattice-like spin configuration occurs when the shape and magnetocrystalline easy axes are orthogonal. Possible applications as magnonic devices are discussed.
引用
收藏
页数:16
相关论文