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2001 | 99 | 2 | 267-276
Article title

Scanning Tunneling Spectra and Low Energy Ion Scattering Studies of the Verwey Transition in MBE Fe_3O_4 (100) Thin Film

Content
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Languages of publication
EN
Abstracts
EN
The (100) surface of magnetite Fe_3O_4 thin film was studied by a UHV low-temperature scanning tunneling microscope and by an ion scattering spectroscopy. The tunneling spectra revealed a widening of the gap with decreasing temperature, which may be related to the metal-insulator phase transition in this material. A strong effect of this phase transition on ion scattering from such a surface was observed. The temperature dependence of the scattered ion yield, R^+(T), revealed two minima at around 100 K and at 125 K under Ne^+ bombardment with the primary energy up to 6 keV. The disappearance of the high-temperature minimum at a bombarding energy of 6.5 keV gave a further evidence for the ion velocity dependence of the character of the R^+(T) curve, which has been first observed for a MBE Fe_3O_4 (111) film surface.
Keywords
EN
Publisher

Year
Volume
99
Issue
2
Pages
267-276
Physical description
Dates
published
2001-02
received
2000-12-27
Contributors
author
  • Institute of Physics, Pedagogical University, Podchorążych 2, 30-084 Kraków, Poland
author
  • Institute of Physics, Pedagogical University, Podchorążych 2, 30-084 Kraków, Poland
author
  • Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv99n205kz
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