What is it about?
In this work, the Yb 3d → 2p (Yb Lα1,2) resonant X-ray emission spectrum of β-YbAlB4 was acquired using excitation energies around the Yb L3-edge, at 2K. Subsequently, the lifetime-broadening-suppressed (LBS) X-ray absorption structure (XAS) spectrum was obtained using the SIM-RIXS program.
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Why is it important?
For an exotic superconductor, b-YbAlB4, its Yb valence number was critically assessed by using newly obtained LBS-XAS data.
Perspectives
By this work, LBS-XAS has been shown to be a powerful tool for determining valence values of heavy fermion compounds.
Dr Hisashi Hayashi
Japan Women's University
Read the Original
This page is a summary of: Lifetime-Broadening-Suppressed X-ray Absorption Spectrum of β-YbAlB4 Deduced from Yb 3d → 2p Resonant X-ray Emission Spectroscopy, Journal of the Physical Society of Japan, January 2017, Physical Society of Japan,
DOI: 10.7566/jpsj.86.014711.
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