Spin-Polarised Tunneling Effects Observed on the Magnetite (001) and (111) Surfaces
作者： S. F. Ceballos , N. Berdunov , G. Mariotto , I. V. Shvets
DOI: 10.1007/978-1-4020-2200-5_8
关键词:
摘要: The (001) and (111) surface structure of magnetite have been studied using Auger electron spectroscopy, low energy diffraction (LEED) scanning tunneling microscopy (STM). A clean was obtained by a combination in-situ annealing in oxygen atmosphere, Argon sputtering subsequent UHV for Fe3O4 surfaces. (√2 × √2)R45° superlattice found LEED STM on the surface. Evidence formation superstructure single crystal is given. superstructure, which has periodicity 42 three-fold symmetry, observed means LEED. Atomic resolution images achieved MnNi tips, are interpreted terms spin-polarized effect.
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