Proceedings of nanoGe Fall Meeting19 (NFM19)
DOI: https://doi.org/10.29363/nanoge.nfm.2019.129
Publication date: 18th July 2019
Ultra-high resolution and quantitative microscopy are the key needs for the successful and unambiguous inspection of functionality at the nanometer length scale. I will present two such hot topics, NanoMagnetism (NM) of modern topological textures and NanoOptics (NO) down to the 1 THz frequency, where scanning force microscopy (SFM)-based mimics are the key in-and-outs to address a multitude of scientific questions.
NM rapidly develops into a prospective field where non-collinear magnetic textures allow applications into novel device concepts such as data storage and sensing. Skyrmions for instance are one of these popular nanomagnetic structures that become stable due to topological protection. I will introduce how SFM-based conservative/non-conservative force sensing can be used to monitor, quantify and manipulate magnetic functionality down to the 1-nm-length scale.
NO, on the other hand, continuously develops into a SFM-based near-field optical scattering method at infrared wavelengths. I will present how we couple such an apertureless setup with the brilliant light source of a free-electron laser that covers the broad range from 75 … 0,1 THz, i.e. wavelengths from 4 µm up to mm. Selected experiments both at room and at liquid-helium temperatures will be presented.
We acknowledge financial support by the DFG, BMBF, DAAD, and the VW-foundation.
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