Soft-x-ray spectroscopy measurements of the p-like density of states of B in MgB2 and evidence for surface boron oxides on exposed surfaces

T. A. Callcott, L. Lin, G. T. Woods, G. P. Zhang, J. R. Thompson, M. Paranthaman, D. L. Ederer

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Soft-x-ray absorption and fluorescence measurements are reported for the K edge of B in MgB2. The measurements confirm a high density of B pxy(σ) states at the Fermi edge and extending to approximately 0.9 eV above the edge. A strong resonance is observed in elastic scattering through a core exciton derived from out-of-plane pz(π*) states. Another strong resonance, observed in both elastic and inelastic spectra, is identified as a product of surface boron oxides.

Original languageEnglish
Article number132504
Pages (from-to)1325041-1325043
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume64
Issue number13
Publication statusPublished - 2001 Oct 1

Fingerprint

boron oxides
x ray spectroscopy
Boron
Spectroscopy
X rays
Oxides
Elastic scattering
Excitons
x ray fluorescence
Fluorescence
x ray absorption
elastic scattering
excitons
products
boron oxide
LDS 751

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Callcott, T. A., Lin, L., Woods, G. T., Zhang, G. P., Thompson, J. R., Paranthaman, M., & Ederer, D. L. (2001). Soft-x-ray spectroscopy measurements of the p-like density of states of B in MgB2 and evidence for surface boron oxides on exposed surfaces. Physical Review B - Condensed Matter and Materials Physics, 64(13), 1325041-1325043. [132504].
Callcott, T. A. ; Lin, L. ; Woods, G. T. ; Zhang, G. P. ; Thompson, J. R. ; Paranthaman, M. ; Ederer, D. L. / Soft-x-ray spectroscopy measurements of the p-like density of states of B in MgB2 and evidence for surface boron oxides on exposed surfaces. In: Physical Review B - Condensed Matter and Materials Physics. 2001 ; Vol. 64, No. 13. pp. 1325041-1325043.
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Soft-x-ray spectroscopy measurements of the p-like density of states of B in MgB2 and evidence for surface boron oxides on exposed surfaces. / Callcott, T. A.; Lin, L.; Woods, G. T.; Zhang, G. P.; Thompson, J. R.; Paranthaman, M.; Ederer, D. L.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 64, No. 13, 132504, 01.10.2001, p. 1325041-1325043.

Research output: Contribution to journalArticle

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AU - Callcott, T. A.

AU - Lin, L.

AU - Woods, G. T.

AU - Zhang, G. P.

AU - Thompson, J. R.

AU - Paranthaman, M.

AU - Ederer, D. L.

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AB - Soft-x-ray absorption and fluorescence measurements are reported for the K edge of B in MgB2. The measurements confirm a high density of B pxy(σ) states at the Fermi edge and extending to approximately 0.9 eV above the edge. A strong resonance is observed in elastic scattering through a core exciton derived from out-of-plane pz(π*) states. Another strong resonance, observed in both elastic and inelastic spectra, is identified as a product of surface boron oxides.

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