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Buerger's disease manifesting nodular erythema with livedo reticularis
ArticleINTERNAL MEDICINE. 46(21):1815-1819(2007)journal articl
Perpendicularly Magnetized Ni / Pt (001) Epitaxial Superlattice
A perpendicularly magnetized ferromagnetic layer is an important building
block for recent/future highdensity spintronic memory applications. This paper
reports on the fabrication of perpendicularly magnetized Ni / Pt superlattices
and the characterization of their structures and magnetic properties. The
optimization of film growth conditions allowed us to grow epitaxial Ni / Pt
(001) superlattices on SrTiO (001) single crystal substrates. We
investigated their structural parameters and magnetic properties as a function
of the Ni layer thickness, and obtained a high uniaxial magnetic anisotropy
energy of 1.9 x 10 erg/cm for a [Ni (4.0 nm) / Pt (1.0 nm)]
superlattice. In order to elucidate the detailed mechanism on perpendicular
magnetic anisotropy for the Ni / Pt (001) superlattices, the experimental
results were compared with the first-principles calculations. It has been found
that the strain effect is a prime source of the emergence of perpendicular
magnetic anisotropy.Comment: 33 pages, 12 figure
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