期刊
PURE AND APPLIED CHEMISTRY
卷 83, 期 11, 页码 1989-2001出版社
WALTER DE GRUYTER GMBH
DOI: 10.1351/PAC-CON-11-03-06
关键词
ferromagnets; ferromagnetic resonance; magnetic properties; magnonics; magnonic crystals; micromagnetic; nanodevices; nanostructured materials; nanowires; spin waves; thin films; transition metals
资金
- European Community [FP7/2007-2013, 228673, SFB 668]
- Nanospintronics of the City of Hamburg
- German Excellence Cluster Nanosystems Initiative Munich
Spin-wave (SW) modes are addressed which are confined in thin individual Ni80Fe20 nanowires with widths ranging from 220 to 360 nm. In periodic arrays with an edge-to-edge separation of down to 100 nm, confined modes of neighboring nanowires are found to couple coherently and form allowed minibands and forbidden frequency gaps. This gives rise to a one-dimensional magnonic crystal. We present all-electrical SW spectroscopy data and micromagnetic simulations. We find that the nanowire arrays allow us to reprogram the relevant magnonic band structure via the magnetic history. A forbidden frequency gap of up to about 1 GHz is controlled by an in-plane magnetic field being as small as a few mT.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据