Magnetic dichroism in angular resolved hard X-ray photoelectron spectroscopy from buried magnetic layers

Violbarbosa CE, Ouardi S, Fecher GH, Ebke D, Felser C (2013)

Publication Type: Journal article

Publication year: 2013

Journal

Journal of Electron Spectroscopy and Related Phenomena Elsevier

Book Volume: 189

Pages Range: 146-151

DOI: 10.1016/j.elspec.2013.01.008

Abstract

This work reports on the measurement of magnetic dichroism in angular-resolved photoelectron spectroscopy from in-plane magnetized buried thin films. The high bulk sensitivity of hard X-ray photoelectron spectroscopy (HAXPES) in combination with circularly polarized radiation enables the investigation of the magnetic properties of buried layers. Angular distributions of high kinetic energy (7-8 keV) photoelectrons in a range of about 60 were recorded in parallel to the energy distribution. Depending on purpose, energy and angular resolutions of 150-250 meV and 0.17-2 can be accomplished simultaneously in such experiments. Experiments were performed on exchange-biased magnetic layers covered by thin oxide films. More specifically, the angular distribution of photoelectrons from the ferromagnetic layer Co 2FeAl layer grown on MnIr exchange-biasing layer was investigated where the magnetic structure is buried beneath a MgO layer. Pronounced magnetic dichroism is found in the Co and Fe 2p states for all angles of emission. A slightly increased magnetic dichroism was observed for normal emission in agreement with theoretical considerations. © 2013 Elsevier B.V. All rights reserved.

Involved external institutions

Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE)

How to cite

APA:

Violbarbosa, C.E., Ouardi, S., Fecher, G.H., Ebke, D., & Felser, C. (2013). Magnetic dichroism in angular resolved hard X-ray photoelectron spectroscopy from buried magnetic layers. Journal of Electron Spectroscopy and Related Phenomena, 189, 146-151. https://dx.doi.org/10.1016/j.elspec.2013.01.008

MLA:

Violbarbosa, Carlos E., et al. "Magnetic dichroism in angular resolved hard X-ray photoelectron spectroscopy from buried magnetic layers." Journal of Electron Spectroscopy and Related Phenomena 189 (2013): 146-151.

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