Experimental and theoretical study of the electronic structures of Y 1-xRxPd2B2C (R = Gd, Dy, Ho, and Er) superconductors

Y. K. Wang; L. S. Hsu; M. D. Lan

doi:10.1016/j.jallcom.2004.07.047

Experimental and theoretical study of the electronic structures of Y _1-xR_xPd₂B₂C (R = Gd, Dy, Ho, and Er) superconductors

Y. K. Wang
, L. S. Hsu^*
, M. D. Lan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The electronic structures of four polycrystalline borocarbide superconductors Y_1-xR_xPd₂B₂C (R = Gd, Dy, Ho, and Er) were studied by photoabsorption spectroscopy and theoretical calculation. The Pd and rare-earth L₃-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 with addition of rare-earth dopant in these compounds is not due to a decrease of the total density of states at the Fermi energy.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	389
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2004.07.047
Publication status	Published - 2005 Mar 8
Externally published	Yes

Keywords

Electronic structure
Photoabsorption
Superconductor

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2004.07.047

Cite this

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title = "Experimental and theoretical study of the electronic structures of Y 1-xRxPd2B2C (R = Gd, Dy, Ho, and Er) superconductors",

abstract = "The electronic structures of four polycrystalline borocarbide superconductors Y1-xRxPd2B2C (R = Gd, Dy, Ho, and Er) were studied by photoabsorption spectroscopy and theoretical calculation. The Pd and rare-earth L3-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 with addition of rare-earth dopant in these compounds is not due to a decrease of the total density of states at the Fermi energy.",

keywords = "Electronic structure, Photoabsorption, Superconductor",

author = "Wang, \{Y. K.\} and Hsu, \{L. S.\} and Lan, \{M. D.\}",

note = "Funding Information: LSH acknowledge support from the National Science Council, Taiwan. We thank H.-H. Hong and J.-F. Lee for the assistance in the XANES experiments. ",

year = "2005",

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AU - Wang, Y. K.

AU - Hsu, L. S.

AU - Lan, M. D.

N1 - Funding Information: LSH acknowledge support from the National Science Council, Taiwan. We thank H.-H. Hong and J.-F. Lee for the assistance in the XANES experiments.

PY - 2005/3/8

Y1 - 2005/3/8

N2 - The electronic structures of four polycrystalline borocarbide superconductors Y1-xRxPd2B2C (R = Gd, Dy, Ho, and Er) were studied by photoabsorption spectroscopy and theoretical calculation. The Pd and rare-earth L3-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 with addition of rare-earth dopant in these compounds is not due to a decrease of the total density of states at the Fermi energy.

AB - The electronic structures of four polycrystalline borocarbide superconductors Y1-xRxPd2B2C (R = Gd, Dy, Ho, and Er) were studied by photoabsorption spectroscopy and theoretical calculation. The Pd and rare-earth L3-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 with addition of rare-earth dopant in these compounds is not due to a decrease of the total density of states at the Fermi energy.

KW - Electronic structure

KW - Photoabsorption

KW - Superconductor

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