Simple method for optimization of classical electron magnetic circular dichroism measurements : The role of structure factor and extinction distances

Schneider, Sebastian; Negi, Devendra; Stolt, Matthew J.; Jin, Song; Spiegelberg, Jakob; Pohl, Darius; Rellinghaus, Bernd; Goennenwein, Sebastian T. B.; Nielsch, Kornelius; Rusz, Ján

Simple method for optimization of classical electron magnetic circular dichroism measurements : The role of structure factor and extinction distances

Dateien

Zu diesem Dokument gibt es keine Dateien.

Datum

2018

Autor:innen

Schneider, Sebastian

Negi, Devendra

Stolt, Matthew J.

Jin, Song

Spiegelberg, Jakob

Pohl, Darius

Rellinghaus, Bernd

Goennenwein, Sebastian T. B.

Nielsch, Kornelius

Rusz, Ján

DOI (zitierfähiger Link)

https://doi.org/10.1103/PhysRevMaterials.2.113801

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Materials. American Physical Society (APS). 2018, 2(11), 113801. eISSN 2475-9953. Available under: doi: 10.1103/PhysRevMaterials.2.113801

Zusammenfassung

Electron magnetic circular dichroism (EMCD), the electron wave analog of x-ray magnetic circular dichroism (XMCD), allows for the element specific measurement of the spin and orbital magnetic moments with up to nanometer resolution. However, due to dynamical diffraction effects, the signal-to-noise ratios of EMCD spectra are often very low. We describe a simple set of rules, how to set up a geometry for a classical EMCD experiment on an arbitrary crystal structure to get a maximum dichroic signal. The procedure is based on an evaluation of the structure factor and extinction distances. Proof-of-concept simulations and experiments on a FeGe crystal present a successful test of these guidelines.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

SCHNEIDER, Sebastian, Devendra NEGI, Matthew J. STOLT, Song JIN, Jakob SPIEGELBERG, Darius POHL, Bernd RELLINGHAUS, Sebastian T. B. GOENNENWEIN, Kornelius NIELSCH, Ján RUSZ, 2018. Simple method for optimization of classical electron magnetic circular dichroism measurements : The role of structure factor and extinction distances. In: Physical Review Materials. American Physical Society (APS). 2018, 2(11), 113801. eISSN 2475-9953. Available under: doi: 10.1103/PhysRevMaterials.2.113801

BibTex

@article{Schneider2018Simpl-51828,
  year={2018},
  doi={10.1103/PhysRevMaterials.2.113801},
  title={Simple method for optimization of classical electron magnetic circular dichroism measurements : The role of structure factor and extinction distances},
  number={11},
  volume={2},
  journal={Physical Review Materials},
  author={Schneider, Sebastian and Negi, Devendra and Stolt, Matthew J. and Jin, Song and Spiegelberg, Jakob and Pohl, Darius and Rellinghaus, Bernd and Goennenwein, Sebastian T. B. and Nielsch, Kornelius and Rusz, Ján},
  note={Article Number: 113801}
}

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