Dresden 2020 – wissenschaftliches Programm

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O: Fachverband Oberflächenphysik

O 72: Scanning Probe Techniques I: STM-ESR and Method Development (joint session O/CPP)

O 72.1: Vortrag

Mittwoch, 18. März 2020, 15:00–15:15, TRE Ma

Dynamics in spin excitation spectroscopy measurements — •Luigi Malavolti1,2, Max Hänze1,2, Gregory McMurtrie1, and Sebastian Loth1,21University of Stuttgart, Institute for Functional Matter and Quantum Technologies, Stuttgart, Germany. — 2Max Planck Institute for Solid State Research, Stuttgart, Germany.

Spin excitation spectroscopy has proven to be an essential tool for the investigation of magnetic phenomena at the atomic scale [1] forming the basis for RF-STM investigation of both electron spin resonance and spin dynamics [2]. However, certain spin dynamic phenomena can also be transduced directly via standard dIdV(V) measurements [3]. Here, the contribution of spin dynamic effects to static spectroscopy measurements is presented using a combined theoretical and experimental approach. Understanding these phenomena allows the behavior of spin systems with long-lived excitations to be anticipated, offering a fast and reliable way to access spin dynamics with standard STM techniques. [1] R. Wiesendanger, Rev. Mod. Phys. 81, 1495 (2009) [2] Loth S., Science, 329, 1628, (2010) [3] Rolf-Pissarczyk S., PRL, 119, 217201, (2017)

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