IUVSTA 15th International Vacuum Congress (IVC-15), AVS 48th International Symposium (AVS-48), 11th International Conference on Solid Surfaces (ICSS-11)
    Magnetic Interfaces and Nanostructures Thursday Sessions
       Session MI+NS-ThM

Invited Paper MI+NS-ThM10
Imaging Magnetic Nanostructures by Spin-Polarized Scanning Tunneling Microscopy

Thursday, November 1, 2001, 11:20 am, Room 110

Session: Magnetic Imaging and Spectroscopy
Presenter: M. Bode, University of Hamburg, Germany
Authors: M. Bode, University of Hamburg, Germany
A. Kubetzka, University of Hamburg, Germany
O. Pietzsch, University of Hamburg, Germany
M. Kleiber, University of Hamburg, Germany
R Ravli@aa c@, University of Hamburg, Germany
R. Wiesendanger, University of Hamburg, Germany
Correspondent: Click to Email
Our recent progress in spin-polarized scanning tunneling microscopy (SP-STM) will be reviewed. By using magnetic thin film tips and spectroscopic techniques we could image the surface spin-structure of different surfaces and ultrathin films with a spatial resolution down to the atomic level. Namely, we will present results obtained on the topological antiferromagnet Cr(001),@footnote 1@ on self-organized Fe-nanowires@footnote 2@ and -islands,@footnote 3@ and on the antiferromagnetic monolayer of Mn/W(110).@footnote 4@ We will demonstrate that in-plane and out-of-plane spin-contrast can be achieved by choosing appropriate magnetic tip coatings and that the use of an antiferromagnetic tip material avoids any influence of the tip´s magnetic stray field on the sample´s domain structure. In contrast to most other electron-based microscopic techniques SP-STM as a near-field method can be applied even in large external magnetic fields up to several Tesla allowing the investigation of hysteresis effects in magnetically hard materials. @FootnoteText@ @footnote 1@ M. Kleiber et al., Phys. Rev. Lett. 85, 4606 (2000).@footnote 2@ O. Pietzsch et al., Phys. Rev. Lett. 84, 5212 (2000).@footnote 3@ A. Kubetzka et al., Phys. Rev. B 63, 140407 (2001). @footnote 4@ S. Heinze et al., Science 288, 1805 (2000).