Valence instability and crystal structures in <math>
  <mrow>
    <msub>
      <mi>YbCu</mi>
      <mi>x</mi>
    </msub>
    <msub>
      <mi>Ga</mi>
      <mrow>
        <mn>2</mn>
        <mo>−</mo>
        <mi>x</mi>
      </mrow>
    </msub>
  </mrow>
</math> studied by x-ray absorption spectroscopy and x-ray diffraction

Hitoshi Yamaoka; Yuichi Michiue; Yoshiya Yamamoto; Naohito Tsujii; Masashi Arita; Hitoshi Sato; Masahiro Sawada; Hirofumi Ishii; Nozomu Hiraoka; Jun'ichiro Mizuki

doi:10.1103/physrevb.110.205129

Article Valence instability and crystal structures in

{YbCu}_{x} {Ga}_{2 - x}

studied by x-ray absorption spectroscopy and x-ray diffraction

Hitoshi Yamaoka ; Yuichi Michiue (National Institute for Materials Science) ; Yoshiya Yamamoto ; Naohito Tsujii (National Institute for Materials Science) ; Masashi Arita ; Hitoshi Sato ; Masahiro Sawada ; Hirofumi Ishii ; Nozomu Hiraoka ; Jun'ichiro Mizuki

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Hitoshi Yamaoka, Yuichi Michiue, Yoshiya Yamamoto, Naohito Tsujii, Masashi Arita, Hitoshi Sato, Masahiro Sawada, Hirofumi Ishii, Nozomu Hiraoka, Jun'ichiro Mizuki. Valence instability and crystal structures in

{YbCu}_{x} {Ga}_{2 - x}

studied by x-ray absorption spectroscopy and x-ray diffraction. Physical Review B. 2024, 110 (20), 205129-. https://doi.org/10.1103/physrevb.110.205129

(BibTeX)

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(abstract)

The electronic and crystal structures of YbCuxGa2-x were investigated by high-resolution X-ray absorption spectroscopy at the Yb-L3 absorption edge and X-ray diffraction under pressure. A rapid valence transition was found in YbCu0.5Ga1.5 around 5 GPa. For YbCuGa Nd YbCu1.5Ga0.5, the Yb valence increases gradually. Photoelectron spectroscopy was also performed around Yb 4d-4f resonance energy and at 8.4 eV.

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In Copyright

©2024 American Physical Society

Keyword: Yb compounds, valence fluctuation, high pressure

Date published: 2024-11-13

Publisher: American Physical Society (APS)

Journal:

Physical Review B (ISSN: 24699969) vol. 110 issue. 20 p. 205129-

Funding:

Japan Society for the Promotion of Science 15K05194
Japan Society for the Promotion of Science 15K05190
Japan Society for the Promotion of Science 18K18743
Japan Society for the Promotion of Science 24K21692

Manuscript type: Author's version (Submitted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5026

First published URL: https://doi.org/10.1103/physrevb.110.205129

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Updated at: 2024-11-25 16:30:51 +0900

Published on MDR: 2024-11-25 16:30:51 +0900

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