Spin-polarized scanning tunneling microscope for imaging the in-plane magnetization

Schlickum, U.; Wulfhekel, W.; Kirschner, J.
September 2003
Applied Physics Letters;9/8/2003, Vol. 83 Issue 10, p2016
Academic Journal
We present a spin-polarized scanning tunneling microscope (Sp–STM) for imaging the magnetic in-plane component of magnetic surfaces. Magnetic in-plane sensitivity is obtained by using a ferromagnetic ring as a Sp–STM tip. By periodically switching the magnetization of the ring, the spin-dependent tunneling current between the ring and a spin-polarized sample is measured. The topography and the spin polarization can be imaged at the same time. We resolved the 180° domain wall of Fe whiskers and antiferromagnetic coupled Mn layers on Fe(001). © 2003 American Institute of Physics.


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