Magnetic interactions of Mn clusters supported on Cu
Magnetic interactions of Mn clusters supported on Cu
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DOI：
10.1103/physrevb.73.174434
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发表时间：
2006-05-01
影响因子：
3.7
通讯作者：
Eriksson, O
中科院分区：
文献类型：
--
作者：
Bergman, A;Nordström, L;Eriksson, O
It is demonstrated that the magnetic interactions can be drastically different for nanosized systems compared to those of bulk or surfaces. Using a real-space formalism we have developed a method to calculate noncollinear magnetization structures and hence exchange interactions. Our results for magnetic Mn clusters supported on a Cu(111) surface show that the magnetic ordering as a rule is noncollinear and cannot always be described by using a simple Heisenberg Hamiltonian. We argue that the use of ab initio calculations allowing for noncollinear coupling between atomic spins constitutes an efficient and reliable way of analyzing nanosized magnets.
