Kondo-like 4f delocalization in Gd at high pressure

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We present resonant inelastic x-ray scattering (RIXS) and x-ray emission spectroscopy (XES) results which suggest Kondo-like aspects in the delocalization of 4f electrons in Gd metal to 113 GPa. Analysis of the RIXS data reveal a prolonged and continuous process throughout the entire pressure range, so that the volume collapse transition at 59 GPa is only part of the delocalization phenomenon. Moreover, the L{sub {gamma}1} XES spectra indicate no apparent change in the bare 4f moment across the collapse, suggesting that Kondo screening is responsible for the expected Pauli-like behavior in magnetic susceptibility.

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6 p. (0.3 MB)

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Maddox, B R; Lazicki, A; Yoo, C S; Iota, V; Chen, M; McMahan, A K et al. November 28, 2005.

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We present resonant inelastic x-ray scattering (RIXS) and x-ray emission spectroscopy (XES) results which suggest Kondo-like aspects in the delocalization of 4f electrons in Gd metal to 113 GPa. Analysis of the RIXS data reveal a prolonged and continuous process throughout the entire pressure range, so that the volume collapse transition at 59 GPa is only part of the delocalization phenomenon. Moreover, the L{sub {gamma}1} XES spectra indicate no apparent change in the bare 4f moment across the collapse, suggesting that Kondo screening is responsible for the expected Pauli-like behavior in magnetic susceptibility.

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6 p. (0.3 MB)

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PDF-file: 6 pages; size: 0.3 Mbytes

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  • Journal Name: Physical Review Letters, vol. 96, N/A, June 2, 2006, pp. 215701

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  • Report No.: UCRL-JRNL-217382
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 889989
  • Archival Resource Key: ark:/67531/metadc873747

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  • November 28, 2005

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  • Sept. 21, 2016, 2:29 a.m.

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  • April 13, 2017, 6:22 p.m.

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Maddox, B R; Lazicki, A; Yoo, C S; Iota, V; Chen, M; McMahan, A K et al. Kondo-like 4f delocalization in Gd at high pressure, article, November 28, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc873747/: accessed June 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.