| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1883857 | Radiation Physics and Chemistry | 2006 | 6 Pages |
Abstract
The electronic and magnetic states of a monatomic Fe(0 0 1) layer directly facing an MgO(0 0 1) tunnel barrier were studied by angle-resolved X-ray magnetic circular dichroism (XMCD) at the Fe L2,3 edges in the longitudinal (L) and transverse (T) arrangements. A strong XMCD reveals no oxidation of the 1-ML Fe, showing its crucial role in giant tunnel magnetoresistance effects in Fe/MgO/Fe magnetic tunnel junctions. Sum-rule analyses of the angle-resolved XMCD give values of a spin moment, in-plane and out-of-plane orbital and magnetic dipole moments. Argument is given on their physical implication.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
K. Mamiya, T. Koide, Y. Ishida, Y. Osafune, A. Fujimori, Y. Suzuki, T. Katayama, S. Yuasa,