Journal
NANO LETTERS
Volume 12, Issue 9, Pages 4805-4809Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl302250n
Keywords
Rare earth atoms and clusters; scanning tunneling microscopy; inelastic tunneling spectroscopy; atomic manipulation; magnetic anisotropy; magnetization dynamics
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Funding
- Deutsche Forschungsgemeinschaft [WU 349/4-2, 340/4-1]
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Magnetic anisotropy and magnetization dynamics of rare earth Gd atoms and dimers on Pt(111) and Cu(111) were investigated with inelastic tunneling spectroscopy. The spin excitation spectra reveal that giant magnetic anisotropies and lifetimes of the excited states of Gd are nearly independent of the supporting surfaces and the cluster size. In combination with theoretical calculations, we argue that the observed features are caused by strongly localized character of 4f electrons in Gd atoms and clusters.
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