Magnetic interactions in a ferromagnetic honeycomb nanoscale network
Magnetic interactions in a ferromagnetic honeycomb nanoscale network
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DOI：
10.1103/physrevb.73.052411
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发表时间：
2006-02-01
影响因子：
3.7
通讯作者：
Iye, Y
中科院分区：
文献类型：
--
作者：
Tanaka, M;Saitoh, E;Iye, Y
采用磁力显微镜（MFM）和磁阻测量方法研究了坡莫合金丝蜂窝网络的磁性结构和磁化过程。MFM测量结果表明，剩余的磁性结构是由类似于冰规则的磁相互作用控制的，这提供了当前蜂窝网络与kagome晶格上的Ising系统之间的直接类比。磁阻测量表明，这种相互作用也主导了网络中的磁化过程。通过降低网络顶点处的交换能量，冰规则型相互作用导致网络中磁化过程的转变。
The magnetic structure and magnetization process in a permalloy wire-based honeycomb network have been investigated by means of magnetic-force microscopy (MFM) and magnetoresistance measurement. The MFM measurements show the remanent magnetic structures to be governed by magnetic interaction similar to the ice rule, which provides a direct analogy between the present honeycomb network and an Ising system on a kagome lattice. The magnetoresistance measurements reveal that this interaction also dominates the magnetization processes in the network. By decreasing the exchange energy at the vertices of the network, the ice-rule type of interaction causes a transition of the magnetization process in the network.