Stabilization of metastable expanded face-centered-tetragonal manganese

J.T. Kohlhepp; W.J.M. Jonge, de

doi:10.1103/PhysRevLett.96.237201

Stabilization of metastable expanded face-centered-tetragonal manganese

J.T. Kohlhepp, W.J.M. Jonge, de

Physics of Nanostructures

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Abstract

The structural and magnetic properties of Mn prepd. on single cryst. face-centered-tetragonal (fct) Co(001) were investigated. Mn grows coherently up to at least 50 monolayers (ML) and adopts a metastable expanded fct(001) phase [c/a=1.055(5)]. This new fct-Mn phase was recently predicted theor. by Hafner and Spisak [Phys. Rev. B 72, 144420 (2005)]. Studies of magnetic Mn/Co interface exchange interactions prove the room temp. antiferromagnetic state for thicknesses above 2.5 ML. The magnetic anisotropy of the thin Mn is high enough to induce a significant exchange anisotropy for Mn thicknesses as low as 6 ML. The potential of fct-Mn to become a novel model system for systematic studies on the exchange interactions at antiferromagnet/ferromagnet interfaces is discussed. [on SciFinder (R)]

Original language	English
Pages (from-to)	237201-1/4
Journal	Physical Review Letters
Volume	96
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.96.237201
Publication status	Published - 2006

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title = "Stabilization of metastable expanded face-centered-tetragonal manganese",

abstract = "The structural and magnetic properties of Mn prepd. on single cryst. face-centered-tetragonal (fct) Co(001) were investigated. Mn grows coherently up to at least 50 monolayers (ML) and adopts a metastable expanded fct(001) phase [c/a=1.055(5)]. This new fct-Mn phase was recently predicted theor. by Hafner and Spisak [Phys. Rev. B 72, 144420 (2005)]. Studies of magnetic Mn/Co interface exchange interactions prove the room temp. antiferromagnetic state for thicknesses above 2.5 ML. The magnetic anisotropy of the thin Mn is high enough to induce a significant exchange anisotropy for Mn thicknesses as low as 6 ML. The potential of fct-Mn to become a novel model system for systematic studies on the exchange interactions at antiferromagnet/ferromagnet interfaces is discussed. [on SciFinder (R)]",

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AU - Kohlhepp, J.T.

AU - Jonge, de, W.J.M.

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AB - The structural and magnetic properties of Mn prepd. on single cryst. face-centered-tetragonal (fct) Co(001) were investigated. Mn grows coherently up to at least 50 monolayers (ML) and adopts a metastable expanded fct(001) phase [c/a=1.055(5)]. This new fct-Mn phase was recently predicted theor. by Hafner and Spisak [Phys. Rev. B 72, 144420 (2005)]. Studies of magnetic Mn/Co interface exchange interactions prove the room temp. antiferromagnetic state for thicknesses above 2.5 ML. The magnetic anisotropy of the thin Mn is high enough to induce a significant exchange anisotropy for Mn thicknesses as low as 6 ML. The potential of fct-Mn to become a novel model system for systematic studies on the exchange interactions at antiferromagnet/ferromagnet interfaces is discussed. [on SciFinder (R)]

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Stabilization of metastable expanded face-centered-tetragonal manganese

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