Abstract
We investigated magnetic remanence states of epitaxially grown, exchange-biased MnPd/Fe bilayers by electron holography emphasizing the crystallographic orientations of the layers. Thin-foil transmission electron microscopy (TEM) specimens were carefully prepared along both hard and easy axes of the Fe layer. The ex situ magnetization-reversal process was carried out using the TEM specimens, and magnetic flux densities of the ultra-thin Fe layers were evaluated at different remanence states. We show that a spin configuration in the TEM specimens is determined by the competition between an exchange coupling at the MnPd/Fe bilayer interface, shape anisotropy of TEM specimens and intrinsic magnetocrystalline anisotropy of Fe.
Original language | English |
---|---|
Pages (from-to) | 235-242 |
Number of pages | 8 |
Journal | Journal of Electron Microscopy |
Volume | 60 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2011 Jun |
Keywords
- TEM
- demagnetizing effects
- electron holography
- exchange bias
- magnetic flux density
- shape anisotropy
ASJC Scopus subject areas
- Instrumentation