Magnetic spectroscopy at high pressures using X-ray magnetic circular dichroism

Daniel Haskel*, Yuan-Chieh Tseng, N. M. Souza-Neto, J. C. Lang, S. Sinogeikin, Ya Mudryk, K. A. Gschneidner, V. K. Pecharsky

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

The imbalance in the electronic density of states between spin-up and spin-down electrons characteristic of ferro(ferri)-magnetic materials gives rise to X-ray magnetic circular dichroism (XMCD) in the absorption of circularly polarized X-rays with opposite helicity. These dichroic effects are largest near element-selective atomic resonances and can be used to probe ferro(ferri)-magnetic ordering with element- and electronic orbital-selectivity. We describe recent developments at the Advanced Photon Source that allow measurements of XMCD in a diamond anvil cell. We discuss the challenges associated with these measurements as well as their potential to further our understanding of complex magnetic materials.

Original languageEnglish
Pages (from-to)185-192
Number of pages8
JournalHigh Pressure Research
Volume28
Issue number3
DOIs
StatePublished - 1 Sep 2008

Keywords

  • Magnetism
  • Synchrotron radiation
  • X-ray absorption
  • X-ray magnetic circular dichroism
  • XMCD

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    Haskel, D., Tseng, Y-C., Souza-Neto, N. M., Lang, J. C., Sinogeikin, S., Mudryk, Y., Gschneidner, K. A., & Pecharsky, V. K. (2008). Magnetic spectroscopy at high pressures using X-ray magnetic circular dichroism. High Pressure Research, 28(3), 185-192. https://doi.org/10.1080/08957950802020307