High-frequency magnetization dynamics of individual atomic-scale magnets

High-frequency magnetization dynamics of individual atomic-scale magnets.

S. Krause, A. Sonntag, J. Hermenau, J. Friedlein, and R. Wiesendanger

Phys. Rev. B 93, 064407 (2016)

(a) Telegraphic noise z(t) on a nanomagnet at low and high I at closed feedback loop, and respective data histograms. (U=100 mV, T=45 K) (b) Top: Periodic sequence of high and low tunnel bias. Bottom: Resulting noise I on a thermally switching nanomagnet at constant tip-sample distance. (c) Averaged noise signal during one cycle, calculated from I(t) in (b).