Modeling and photoabsorption study of YPd 2-x Rh x B 2 C superconductors

L. S. Hsu, Yin-Kuo Wang, G. Y. Guo, Y. J. Huang, M. D. Lan

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

The electronic structures of six polycrystalline borocarbide superconductors YPd 5-x Rh x B 3 C 0.4 (x=0, 0.05, 0.1, 0.15, 0.2, and 0.25) were studied by photoemission and photoabsorption spectroscopies and theoretical calculations. The valence-band (VB) photoemission spectrum is compared with the theoretical total and partial density-of-states (DOS) curves. The Pd L 3 -edge x-ray absorption near edge spectra (XANES) are compared with the calculated XANES spectra for these intermetallic compounds. The decrease of the superconducting transition temperatures (T c ) with addition of Rh dopant in these compounds is due to a decrease of the total DOS at the Fermi level (E F ).

Original languageEnglish
Pages (from-to)301-306
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume731
Publication statusPublished - 2002 Jan 1
EventModeling and Numerical Simulation of Materials Behavior and Evolution - San Francisco, CA, United States
Duration: 2002 Apr 22002 Apr 5

Fingerprint

Photoemission
photoabsorption
Superconducting materials
X rays
Valence bands
Fermi level
x ray absorption
Superconducting transition temperature
Intermetallics
Electronic structure
photoelectric emission
Doping (additives)
Spectroscopy
intermetallics
transition temperature
electronic structure
valence
curves
spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Modeling and photoabsorption study of YPd 2-x Rh x B 2 C superconductors . / Hsu, L. S.; Wang, Yin-Kuo; Guo, G. Y.; Huang, Y. J.; Lan, M. D.

In: Materials Research Society Symposium - Proceedings, Vol. 731, 01.01.2002, p. 301-306.

Research output: Contribution to journalConference article

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abstract = "The electronic structures of six polycrystalline borocarbide superconductors YPd 5-x Rh x B 3 C 0.4 (x=0, 0.05, 0.1, 0.15, 0.2, and 0.25) were studied by photoemission and photoabsorption spectroscopies and theoretical calculations. The valence-band (VB) photoemission spectrum is compared with the theoretical total and partial density-of-states (DOS) curves. The Pd L 3 -edge x-ray absorption near edge spectra (XANES) are compared with the calculated XANES spectra for these intermetallic compounds. The decrease of the superconducting transition temperatures (T c ) with addition of Rh dopant in these compounds is due to a decrease of the total DOS at the Fermi level (E F ).",
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AU - Guo, G. Y.

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AU - Lan, M. D.

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AB - The electronic structures of six polycrystalline borocarbide superconductors YPd 5-x Rh x B 3 C 0.4 (x=0, 0.05, 0.1, 0.15, 0.2, and 0.25) were studied by photoemission and photoabsorption spectroscopies and theoretical calculations. The valence-band (VB) photoemission spectrum is compared with the theoretical total and partial density-of-states (DOS) curves. The Pd L 3 -edge x-ray absorption near edge spectra (XANES) are compared with the calculated XANES spectra for these intermetallic compounds. The decrease of the superconducting transition temperatures (T c ) with addition of Rh dopant in these compounds is due to a decrease of the total DOS at the Fermi level (E F ).

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