If I do MFM paramagnetic thin film patterned on SiO2, will it give a phase difference like ferromagnetic films?
Magnetic force microscopy (MFM) is a variety of atomic force microscopy, in which a pointed magnetized tip scans a magnetic sample; the magnetic interactions of the sample tip are detected and used to reconstruct the magnetic structure of the sample surface. Many types of magnetic interactions are measured by MFM, including dipole-dipole or exchange interactions, ..
The MFM can be used to image various magnetic structures including domain walls (Bloch and Neel), closure domains, recorded magnetic bits, etc
MFM images the spatial variation of magnetic forces on a sample surface with the MFM tip coated with a ferromagnetic thin film. In Park AFM, surface topography is obtained in True Non-Contact mode. At the same time, the MFM image is generated by measuring either the amplitude or the phase change of the cantilever oscillation from the magnetic force between the surface and the magnetized MFM cantilever. MFM images contain information on magnetic domain distributions on the sample surface. MFM can be used to image naturally occurring and deliberately written domain structures in magnetic materials.
- Badges
- Science topic
- Similar topics
- Chemistry
- Nanotechnology
- Nanostructures
- Thin Films