Unraveling the symmetry of the hole states near the Fermi level in the MgB2 superconductor

Y. Zhu; A. R. Moodenbaugh; G. Schneider; J. W. Davenport; T. Vogt; Q. Li; G. Gu; D. A. Fischer; J. Tafto

Unraveling the symmetry of the hole states near the Fermi level in the MgB₂ superconductor

Y. Zhu
, A. R. Moodenbaugh
, G. Schneider
, J. W. Davenport
, T. Vogt
, Q. Li
, G. Gu
, D. A. Fischer
, J. Tafto

Physics and Astronomy

Stony Brook University

Brookhaven National Laboratory

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

44 Scopus citations

Abstract

The fine structure at the K edge of boron in MgB₂ was investigated by x-ray absorption spectroscopy (XAS) and electron energy loss spectroscopy (EELS). A peak of width 0.7 at the edge threshold was observed in XAS signaling a narrow energy region with empty boron states near the Fermi level. The EELS measurements were performed with a transmission electron microscope equipped with a field emission gun. The results exhibited the symmetry of the hole states near the Fermi level in MgB₂.

Original language	English
Article number	247002
Pages (from-to)	2470021-2470024
Number of pages	4
Journal	Physical Review Letters
Volume	88
Issue number	24
State	Published - Jun 17 2002

Cite this

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title = "Unraveling the symmetry of the hole states near the Fermi level in the MgB2 superconductor",

abstract = "The fine structure at the K edge of boron in MgB2 was investigated by x-ray absorption spectroscopy (XAS) and electron energy loss spectroscopy (EELS). A peak of width 0.7 at the edge threshold was observed in XAS signaling a narrow energy region with empty boron states near the Fermi level. The EELS measurements were performed with a transmission electron microscope equipped with a field emission gun. The results exhibited the symmetry of the hole states near the Fermi level in MgB2.",

author = "Y. Zhu and Moodenbaugh, \{A. R.\} and G. Schneider and Davenport, \{J. W.\} and T. Vogt and Q. Li and G. Gu and Fischer, \{D. A.\} and J. Tafto",

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AU - Zhu, Y.

AU - Moodenbaugh, A. R.

AU - Schneider, G.

AU - Davenport, J. W.

AU - Vogt, T.

AU - Li, Q.

AU - Gu, G.

AU - Fischer, D. A.

AU - Tafto, J.

PY - 2002/6/17

Y1 - 2002/6/17

N2 - The fine structure at the K edge of boron in MgB2 was investigated by x-ray absorption spectroscopy (XAS) and electron energy loss spectroscopy (EELS). A peak of width 0.7 at the edge threshold was observed in XAS signaling a narrow energy region with empty boron states near the Fermi level. The EELS measurements were performed with a transmission electron microscope equipped with a field emission gun. The results exhibited the symmetry of the hole states near the Fermi level in MgB2.

AB - The fine structure at the K edge of boron in MgB2 was investigated by x-ray absorption spectroscopy (XAS) and electron energy loss spectroscopy (EELS). A peak of width 0.7 at the edge threshold was observed in XAS signaling a narrow energy region with empty boron states near the Fermi level. The EELS measurements were performed with a transmission electron microscope equipped with a field emission gun. The results exhibited the symmetry of the hole states near the Fermi level in MgB2.

UR - https://www.scopus.com/pages/publications/0037124788

M3 - Article

SN - 0031-9007

VL - 88

SP - 2470021

EP - 2470024

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 247002

ER -

Unraveling the symmetry of the hole states near the Fermi level in the MgB₂ superconductor

Abstract

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