Electronic stability of magnetic [formula presented] superlattices with monatomic layer alternation

G. A. Farnan, C. L. Fu, Z. Gai, M. Krcmar, A. P. Baddorf, Zhenyu Zhang, J. Shen

Research output: Contribution to journalArticlepeer-review

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Abstract

We report a surprising observation that the growth of the [Formula presented] superlattice of [Formula presented] structure on Cu(100) is stable only up to six atomic layers ([Formula presented]), which cannot be rationalized by stress arguments. Instead, first-principles calculations reveal a transition from the [Formula presented] to the [Formula presented] structure due to the effect of dimensionality on the stability of the electronic structure of the superlattice. Whereas the majority-spin electrons are energetically insensitive to the layer thickness, the minority-spin electrons induce the transition at [Formula presented].

Original languageEnglish
JournalPhysical Review Letters
Volume91
Issue number22
DOIs
StatePublished - 2003

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