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Determination of perpendicular magnetic anisotropy based on the magnetic droplet nucleation
- Source :
- Japanese Journal of Applied Physics. 57:050308
- Publication Year :
- 2018
- Publisher :
- IOP Publishing, 2018.
-
Abstract
- We propose an alternative method of determining the magnetic anisotropy field μ0 H K in ferro-/ferrimagnets. On the basis of the droplet nucleation model, there exists linearity between domain-wall (DW) energy density and in-plane magnetic field. We find that the slope is simply represented by μ0 H K and Dzyaloshinskii–Moriya interaction (DMI). By measuring the in-plane magnetic field dependence of the coercivity field, closely corresponding to the DW energy density, a robust value for μ0 H K can be quantified. This robust value can be used to determine μ0 H K over a wide range of values, overcoming the limitations caused by the small strength of the external magnetic field typically used in experiments.
- Subjects :
- Range (particle radiation)
Droplet nucleation
Materials science
Physics and Astronomy (miscellaneous)
Basis (linear algebra)
Field (physics)
Condensed matter physics
General Engineering
General Physics and Astronomy
Linearity
02 engineering and technology
Coercivity
021001 nanoscience & nanotechnology
01 natural sciences
Magnetic field
Magnetic anisotropy
0103 physical sciences
010306 general physics
0210 nano-technology
Subjects
Details
- ISSN :
- 13474065 and 00214922
- Volume :
- 57
- Database :
- OpenAIRE
- Journal :
- Japanese Journal of Applied Physics
- Accession number :
- edsair.doi...........ee3b77fb2d0692545c7f375cedb5d228