Magnetic imaging by the anomalous Nernst effect using atomic force microscopy
- Resource Type
- Conference
- Authors
- Budai, Nico; Isshiki, Hironari; Uesugi, Ryota; Zhu, Zheng; Higo, Tomoya; Nakatsuji, Satoru; Otani, YoshiChika
- Source
- 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers) Magnetic Conference - Short Papers (INTERMAG Short Papers), 2023 IEEE International. :1-2 May, 2023
- Subject
- Fields, Waves and Electromagnetics
Temperature measurement
Atomic measurements
Atomic force microscopy
Visualization
Voltage measurement
Atmospheric measurements
Magnetic resonance imaging
Scanning probe microscopy
anomalous Nernst effect
Weyl ferromagnet
magnetic imaging
- Language
We report a method to visualize magnetic domains based on the anomalous Nernst effect in a nanowire of Co2MnGa using atomic force microscopy. The touching AFM tip creates a temperature gradient in the sample, whereby the generated voltage due to the anomalous Nernst effect is measured by lock-in technique. Our method works at room temperature and atmosphere with a high spatial resolution on the magnetic domain compared to similar techniques.