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Experimental probing of the anisotropy of the empty p states near the Fermi level in MgB2

R. F. Klie·Y. Zhu·G. Schneider·J. Tafto
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Abstract

We have studied the Boron K-edge in the superconductor MgB2 by electron energy loss spectroscopy (EELS) and experimentally resolved the empty p states at the Fermi level that have previously been observed within an energy window of 0.8eV by soft x-ray absorption spectroscopy. Using angular resolved EELS, we find that these states at the immediate edge onset have pxy character in agreement with predictions from first-principle electronic structure calculations.

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R. F. Klie, Y. Zhu, G. Schneider, J. Tafto. 2003-01-29. Experimental probing of the anisotropy of the empty p states near the Fermi level in MgB2. https://doi.org/10.1063/1.1583132

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