Spin-Polarized Scanning Tunneling Microscopy

Authored by: Matthias Bode

Handbook of Spin Transport and Magnetism

Print publication date:  August  2011
Online publication date:  April  2016

Print ISBN: 9781439803776
eBook ISBN: 9781439803783
Adobe ISBN:

10.1201/b11086-32

 Download Chapter

 

Abstract

Fueled by the ever increasing data density in magnetic storage technology and the need for a better understanding of the physical properties of magnetic nanostructures, there exists a strong demand for high-resolution magnetically sensitive microscopy techniques. The technique with the highest available resolution is spin-polarized scanning tunneling microscopy (SP-STM), which combines the atomic-resolution capability of conventional STMs with spin sensitivity by making use of the tunneling magnetoresistance (TMR) effect between a magnetic tip and the magnetic sample surface. Beyond the investigation of ferromagnetic surfaces, thin films, and epitaxial nanostructures with unforeseen precision, it also allows the achievement of a longstanding dream, that is, the real-space imaging of atomic spins in antiferromagnetic surfaces. Furthermore, the atomic spin resolution capability of SP-STM allowed for the discovery and investigation of complex spin structures like frustrated triangular structures and helical spin spirals, which were hypothesized but could not be imaged directly before.

 Cite
Search for more...
Back to top

Use of cookies on this website

We are using cookies to provide statistics that help us give you the best experience of our site. You can find out more in our Privacy Policy. By continuing to use the site you are agreeing to our use of cookies.