Nanoscale imaging looks deep into magnetic materials – Physics World
Twist and turn: reconstruction of a magnetic vortex A new technique for taking nanoscale images of the magnetic properties of materials has been unveiled by researchers in Switzerland. Higher-energy “hard” X-rays penetrate much deeper into materials and are used in tomography. Using a computer algorithm of their own design, the researchers used the data to reconstruct the magnetism at each point in the pillar with a spatial resolution of around 100 nm. Bloch points This allowed the team to make the first-ever direct experimental observations of Bloch points. These are monopole-like points where magnetic domains point in different directions.
Tags:
- Magnetism
- X-ray
- Polarization (waves)
- Magnetic domain
- Circular polarization
- Light
- Circular dichroism
- Tomography
- Physics
- Spin (physics)
- Magnetic monopole
- Magnetic structure
- Electrical engineering
- Physical sciences
- Electromagnetism
- Atomic molecular and optical physics
- Science
- Chemistry
- Optics
- Applied and interdisciplinary physics
- Electromagnetic radiation