期刊
PHYSICAL REVIEW B
卷 61, 期 19, 页码 12728-12731出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.61.12728
关键词
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Using local-spin density calculations performed in the generalized-gradient approximation we have examined the possibility that Mn monolayers epitaxially grown on Cu(111) substrates represent a physical realization of the frustrated antiferromagnetic planar (AFP) model. Indeed, we find that the noncollinear ground state of the AFP model with +/- 120 degrees orientations of the nearest-neighbors is also the ground state of Mn/Cu(111). However, due to the rather long-range antiferromagnetic interactions, the energetic preference over a raw-wise antiferromagnetic order is only very weak.
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