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2008 | 114 | 1 | 243-246
Article title

XPS Investigation of Y_{1-x}Dy_xNi_2B_2C Superconductors

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EN
Abstracts
EN
The analysis of the valence band photoemission spectra of Y_{1-x}Dy_xNi_2B_2C (0≤x≤1) is presented. The valence bands are mainly plotted for Ni 3d, Y 4d and Dy 4f contributions, according to theoretical predictions. The valence bands of Y_{1-x}Dy_xNi_2B_2C compounds markedly change shape with the x parameter, especially in the binding energy region from 3 eV to 14 eV. For large content of Dy (above 55%) the valence band is predominant by Dy 4f states whereas Ni 3d states govern the valence band of yttrium rich compounds. Changing in domination of valence sub-band correlates with plot of superconducting transition temperature T_c with Dy concentration.
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Contributors
author
  • August Chełkowski Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • August Chełkowski Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland
author
  • August Chełkowski Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv114n137kz
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