Abstract
The symmetry of the p-hole state of a superconductor of MgB2 was studied by the observation of inelastic scattering anisotropy of fast electrons accompanied by boron K-shell excitation. A series of the energy-selected diffraction patterns taken at successive energy losses were decomposed into two components; the σ and π components, respectively. The magnitudes of the σ and π components as a function of energy loss, or partial electron energy-loss spectroscopy spectra, show a good correspondence to the partial density of states obtained by a theoretical calculation. A significant occupation of the σ state at just above the Fermi level, which is considered to play an important role for the formation of the superconductive state, was confirmed.
Original language | English |
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Article number | 113920 |
Journal | Journal of Applied Physics |
Volume | 112 |
Issue number | 11 |
DOIs | |
Publication status | Published - Dec 1 2012 |
ASJC Scopus subject areas
- Physics and Astronomy(all)