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.
|頁（從 - 到）||259-262|
|期刊||Physica C: Superconductivity and its applications|
|出版狀態||Published - 2003 十月|
|事件||Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan|
持續時間: 2002 十一月 11 → 2002 十一月 13
All Science Journal Classification (ASJC) codes