Magnetic Anisotropy and Magnetization Dynamics of Individual Atoms and Clusters of Fe and Co on Pt(111)

Abstract

The recently discovered giant magnetic anisotropy of single magnetic Co atoms raises the hope of magnetic storage in small clusters. We present a joint experimental and theoretical study of the magnetic anisotropy and the spin dynamics of Fe and Co atoms, dimers, and trimers on Pt(111). Giant anisotropies of individual atoms and clusters as well as lifetimes of the excited states were determined with inelastic scanning tunneling spectroscopy. The short lifetimes due to hybridization-induced electron-electron scattering oppose the magnetic stability provided by the magnetic anisotropies.

10 pages, 3 figures

References in corpus (3)

• Berry Phase Oscillations of the Kondo Effect in Single-Molecule Magnets
• Spin Inelastic Electron Tunneling Spectroscopy on Local Spin Adsorbed on Surface
• Magnetic properties of single atoms of Fe and Co on Ir(111) and Pt(111)

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