Title :
Surface structure of Fe3O4(110) studied by scanning tunneling microscopy
Author :
Jansen, R. ; Nelissen, B.J. ; Abraham, D.L. ; van Kempen, H. ; Brabers, V.A.M.
Author_Institution :
Res. Inst. for Mater., Nijmegen Univ., Netherlands
fDate :
11/1/1994 12:00:00 AM
Abstract :
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
Keywords :
annealing; ferrimagnetic materials; iron compounds; microscopy; scanning tunnelling microscopy; sputtering; surface conductivity; surface structure; tunnelling; Fe3O4; Fe3O4(110); I-V characteristics; annealing; conductivity; double steps; four-fold steps; magnetite; scanning tunneling microscopy; sputtering; straight terraces; surface structure; Annealing; Conductivity measurement; Current measurement; Iron; Magnetic force microscopy; Magnetic separation; Sputtering; Surface structures; Tunneling; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
