X-ray absorption and resonant photoemission spectroscopy of ZrB2

S. Tsuda, R. Eguchi, A. Kosuge, T. Yokoya, A. Fukushima, S. Shin, A. Chainani, S. Otani, Y. Takano, K. Togano, H. Kito

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

We have performed X-ray absorption and valence band photoemission spectroscopy on ZrB2, which has the same AlB2 structure of MgB2, to study the electronic structure. From X-ray absorption spectra near the B1s-2p threshold, we found a small absorption edge at 188.23 eV with a negligible angular dependence upto 190 eV photon energy. This indicates that B2p partial density of states near the Fermi level (E F) is three dimensional, in sharp contrast to that of MgB 2. Resonant photoemission study across the B1s-2p threshold was found to be difficult due to a large contribution of Auger electrons. On the other hand, resonant photoemission across the Zr3p-4d threshold does show small change in intensity within 4 eV of EF. This indicates that the occupied states near EF have substantial Zr 4d character. These observations are in relatively good agreement with band structure calculations.

Original languageEnglish
Pages (from-to)259-262
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct 1
EventProceedings of the 15th International Symposium on Superconduc - Yokohama, Japan
Duration: 2002 Nov 112002 Nov 13

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X ray absorption
Photoemission
Photoelectron spectroscopy
Absorption spectra
photoelectric emission
thresholds
Valence bands
Fermi level
Band structure
spectroscopy
Electronic structure
absorption spectra
x rays
Photons
Electrons
electronic structure
valence
photons
electrons
energy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Tsuda, S., Eguchi, R., Kosuge, A., Yokoya, T., Fukushima, A., Shin, S., ... Kito, H. (2003). X-ray absorption and resonant photoemission spectroscopy of ZrB2. Physica C: Superconductivity and its applications, 392-396(PART 1), 259-262. https://doi.org/10.1016/S0921-4534(03)00947-X
Tsuda, S. ; Eguchi, R. ; Kosuge, A. ; Yokoya, T. ; Fukushima, A. ; Shin, S. ; Chainani, A. ; Otani, S. ; Takano, Y. ; Togano, K. ; Kito, H. / X-ray absorption and resonant photoemission spectroscopy of ZrB2. In: Physica C: Superconductivity and its applications. 2003 ; Vol. 392-396, No. PART 1. pp. 259-262.
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Tsuda, S, Eguchi, R, Kosuge, A, Yokoya, T, Fukushima, A, Shin, S, Chainani, A, Otani, S, Takano, Y, Togano, K & Kito, H 2003, 'X-ray absorption and resonant photoemission spectroscopy of ZrB2', Physica C: Superconductivity and its applications, vol. 392-396, no. PART 1, pp. 259-262. https://doi.org/10.1016/S0921-4534(03)00947-X

X-ray absorption and resonant photoemission spectroscopy of ZrB2. / Tsuda, S.; Eguchi, R.; Kosuge, A.; Yokoya, T.; Fukushima, A.; Shin, S.; Chainani, A.; Otani, S.; Takano, Y.; Togano, K.; Kito, H.

In: Physica C: Superconductivity and its applications, Vol. 392-396, No. PART 1, 01.10.2003, p. 259-262.

Research output: Contribution to journalConference article

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AU - Tsuda, S.

AU - Eguchi, R.

AU - Kosuge, A.

AU - Yokoya, T.

AU - Fukushima, A.

AU - Shin, S.

AU - Chainani, A.

AU - Otani, S.

AU - Takano, Y.

AU - Togano, K.

AU - Kito, H.

PY - 2003/10/1

Y1 - 2003/10/1

N2 - We have performed X-ray absorption and valence band photoemission spectroscopy on ZrB2, which has the same AlB2 structure of MgB2, to study the electronic structure. From X-ray absorption spectra near the B1s-2p threshold, we found a small absorption edge at 188.23 eV with a negligible angular dependence upto 190 eV photon energy. This indicates that B2p partial density of states near the Fermi level (E F) is three dimensional, in sharp contrast to that of MgB 2. Resonant photoemission study across the B1s-2p threshold was found to be difficult due to a large contribution of Auger electrons. On the other hand, resonant photoemission across the Zr3p-4d threshold does show small change in intensity within 4 eV of EF. This indicates that the occupied states near EF have substantial Zr 4d character. These observations are in relatively good agreement with band structure calculations.

AB - We have performed X-ray absorption and valence band photoemission spectroscopy on ZrB2, which has the same AlB2 structure of MgB2, to study the electronic structure. From X-ray absorption spectra near the B1s-2p threshold, we found a small absorption edge at 188.23 eV with a negligible angular dependence upto 190 eV photon energy. This indicates that B2p partial density of states near the Fermi level (E F) is three dimensional, in sharp contrast to that of MgB 2. Resonant photoemission study across the B1s-2p threshold was found to be difficult due to a large contribution of Auger electrons. On the other hand, resonant photoemission across the Zr3p-4d threshold does show small change in intensity within 4 eV of EF. This indicates that the occupied states near EF have substantial Zr 4d character. These observations are in relatively good agreement with band structure calculations.

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Tsuda S, Eguchi R, Kosuge A, Yokoya T, Fukushima A, Shin S et al. X-ray absorption and resonant photoemission spectroscopy of ZrB2. Physica C: Superconductivity and its applications. 2003 Oct 1;392-396(PART 1):259-262. https://doi.org/10.1016/S0921-4534(03)00947-X