Spin polarized scanning tunneling microscopy (SP-STM) is a specialized application of scanning tunneling microscopy (STM) that can provide detailed information of magentic phenomena on the single atom scale additional to the atomic topology gained with STM. SP-STM was developed by Roland Wiesendanger at the University of Hamburg (Germany) and opened a novel approach to static and dynamic magnetic processes as precise investigations of domain walls in ferromgnetic and antiferromagnetic systems, as well as thermal and current induced switching of nanomagnetic particles.

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