Simple derivation of L-absorption spectra of 3d transition metal elements by the self-absorption effect observed in soft X-ray emission spectra

Masami Terauchi; Yohei K Sato; Takaomi D Yokoyama; Takanori Murano

doi:10.1093/jmicro/dfae012

Simple derivation of L-absorption spectra of 3d transition metal elements by the self-absorption effect observed in soft X-ray emission spectra

Microscopy (Oxf). 2024 Mar 5:dfae012. doi: 10.1093/jmicro/dfae012. Online ahead of print.

Authors

Masami Terauchi¹, Yohei K Sato¹, Takaomi D Yokoyama², Takanori Murano²

Affiliations

¹ Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan.
² JEOL Ltd., 3-1-2 Musashino, Akishima 196-8558, Tokyo, Japan.

PMID: 38441179
DOI: 10.1093/jmicro/dfae012

Abstract

This study proposes a simple evaluation method for deriving L-absorption information from two L-emission spectra of 3d transition metal (TM) elements obtained at two different accelerating voltages. This method realizes a spatial identity for X-ray emission and absorption spectroscopies. This method was evaluated for the Fe L-emission spectra of Fe and its oxides, and was applied to the TM L-emission spectra of MnO, Co, CoO, and NiO. The derived absorption peak positions were consistent with those obtained previously at synchrotron orbital radiation facilities, which considered the core-hole effect. This simple derivation method could be useful for obtaining X-ray absorption spectroscopy distribution images from X-ray emission spectroscopy mapping data obtained by scanning electron microscopy.

Keywords: Absorption edge; self-absorption effect; soft X-ray emission; transition metal elements.