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Perpendicular orbital and quadrupole anisotropies at Fe/MgO interfaces detected by x-ray magnetic circular and linear dichroisms
- Source :
- Applied Physics Letters. 115:252402
- Publication Year :
- 2019
- Publisher :
- AIP Publishing, 2019.
-
Abstract
- We investigated interfacial perpendicular magnetic anisotropy (PMA) in ultrathin Fe/MgO(001) using both x-ray magnetic circular dichroism and magnetic linear dichroism (XMLD). We developed the XMLD technique for detecting the signals from the PMA samples. The PMA energy and quadrupole moments at an Fe/MgO interface were deduced from the XMLD sum rules, whose values explain the microscopic origin of PMA. We found that orbital moment anisotropy is dominant at the Fe/MgO interfacial PMA and the contribution of quadrupole moments is small but finite at the lattice distorted interfaces.
- Subjects :
- 010302 applied physics
Materials science
Physics and Astronomy (miscellaneous)
Condensed matter physics
Perpendicular magnetic anisotropy
Magnetic circular dichroism
X-ray
02 engineering and technology
021001 nanoscience & nanotechnology
Linear dichroism
01 natural sciences
Condensed Matter::Materials Science
Lattice (order)
0103 physical sciences
Quadrupole
Perpendicular
0210 nano-technology
Anisotropy
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 115
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........b4cd54ab8f295e471263ac22cc278d31
- Full Text :
- https://doi.org/10.1063/1.5127665