On the magnetic bistability of small iron clusters used in scanning tunneling microscopy tip preparation
Jisoo Yu,
Corina Urdaniz,
Young Namgoong
et al.
Abstract:The combination of electron spin resonance with scanning tunneling microscopy has resulted in a unique surface probe with sub-nm spatial and neV energy resolution. The preparation of a stable magnetic microtip is of central importance, yet, at the same time remains one of the hardest tasks. In this work, we rationalize why creating such microtips by picking up a few iron atoms often results in magnetically stable probes with two distinct magnetic states. By using density functional theory, we show that randoml… Show more
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