Influence of long-range interactions on the switching behavior of particles in an array of ferromagnetic nanostructures

Influence of long-range interactions on the switching behavior of particles in an array of ferromagnetic nanostructures
复制标题

长程相互作用对铁磁纳米结构阵列中粒子切换行为的影响

DOI:
--
复制
发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Hans Peter Oepen
Hans Peter Oepen
中科院分区:
--
文献类型:
--
作者:
A. Neumann;D. Altwein;Carsten Thönnissen;R. Wieser;A. Berger;A. Meyer;E. Vedmedenko;Hans Peter Oepen

文献摘要

参考文献

被引文献

相似文献

利用反常霍尔效应研究了Co/Pt纳米点的相互作用。有目的地,通过施加垂直于易磁化轴的磁场,将四点系统驱动到不稳定状态。这些点变得对热激发敏感,并且在大距离上观察到相关开关。理论模拟揭示了相关性的重要性及其在大尺度上的影响,实验结果得到了支持。这个意想不到的结果揭示了具有小能量势垒的系统的集合的一般行为,如超顺磁性集合或围绕切换场的高密度位模式介质的切换。
The interaction of Co/Pt nanodots is studied by means of the anomalous Hall-effect. On purpose the system of four dots is driven into a state of instability by applying a magnetic field perpendicular to the easy axis of magnetization. The dots become susceptible to thermal excitation and correlated switching is observed over large distances. The experimental finding is supported by theoretical simulations that reveal the importance of correlations and their influence at large length scales. This unexpected result sheds light on the general behavior of ensembles of systems with small energy barriers like superparamagnetic ensembles or switching of high density bit pattern media around the switching field.
使用图案化磁性纳米结构绘制霍尔十字的空间灵敏度图
DOI: 10.1063/1.3475485
发表时间: 2010
影响因子: 3.2
作者:
Alexandrou M
通讯作者: Alexandrou M
DOI: 10.1103/physrevlett.109.037203
发表时间: 2012-07-17
影响因子: 8.6
作者:
Budrikis, Zoe;Morgan, J. P.;Stamps, R. L.
通讯作者: Stamps, R. L.