High-resolution magnetic imaging by mapping the locally induced anomalous Nernst effect using atomic force microscopy
arXiv:2508.03066 · doi:10.1063/5.0136613
Abstract
We report a magnetic imaging method using atomic force microscopy to measure the locally induced anomalous Nernst effect. The tip contact creates a local temperature gradient on the sample surface controlled by a neighboring Joule heating wire. We demonstrate the imaging of magnetic domains in a nanowire of the ferromagnetic Weyl semimetal Co2MnGa with a spatial resolution of a sub-hundred nanometer at room temperature.
References in corpus (14)
- Weyl and Dirac Semimetals in Three Dimensional Solids
- Giant anomalous Hall effect in a ferromagnetic Kagome-lattice semimetal
- Large anomalous Nernst effect at room temperature in a chiral antiferromagnet
- Giant anomalous Nernst effect and quantum-critical scaling in a ferromagnetic semimetal
- Large magneto-optical Kerr effect and imaging of magnetic octupole domains in an antiferromagnetic metal
- Zero-field Nernst effect in a ferromagnetic kagome-lattice Weyl-semimetal Co3Sn2S2
- Imaging and writing magnetic domains in the non-collinear antiferromagnet MnSn
- Large anomalous Nernst effect in thin films of the Weyl semimetal Co2MnGa
- Nanoscale spatial resolution probes for Scanning Thermal Microscopy of solid state materials
- Heat flux sensing by anomalous Nernst effect in Fe-Al thin films on a flexible substrate
- Anomalous-Nernst and anisotropic magnetoresistive heating in a lateral spin valve
- Thickness dependence of the anomalous Nernst effect and the Mott relation of Weyl-semimetal Co2MnGa thin films
- Direct Mapping of Local Seebeck Coefficient in 2D Material Nanostructures via Scanning Thermal Gate Microscopy
- Anomalous Nernst effect on the nanometer scale: Exploring three-dimensional temperature gradients in magnetic tunnel junctions