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Surface structure of Fe3O4(110) studied by scanning tunneling microscopy

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5 Author(s)
Jansen, R. ; Res. Inst. for Mater., Nijmegen Univ., Netherlands ; Nelissen, B.J. ; Abraham, D.L. ; van Kempen, H.
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We have studied the (110) surface of magnetite Fe3O4 with a UHV scanning tunneling microscope (STM). The surface was prepared by a combination of sputtering and annealing at 1200 K and shows straight terraces separated mainly by double and four-fold steps. On the terraces rows were found, with a separation of about 25 Å. Current versus voltage characteristics measured on this surface display a gap in the conductivity of about 2 eV. Results will be discussed considering the bulk Fe3O4 structure

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Magnetics, IEEE Transactions on  (Volume:30 ,  Issue: 6 )