Electronic structure of MgB$_2$: X-ray emission and absorption studies

A. Moewes; E.Z. Kurmaev; I.I. Lyakhovskaya; J. Akimitsu; J. Kortus; M. Demeter; M. Neumann; M. Watanabe; M. Yanagihara; N. Miyata

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Electronic structure of MgB₂: X-ray emission and absorption studies

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arxiv cond-mat/0103487 v3 pith:P7OMKY64 submitted 2001-03-23 cond-mat.supr-con cond-mat.mtrl-sci

Electronic structure of MgB₂: X-ray emission and absorption studies

E.Z. Kurmaev , I.I. Lyakhovskaya , J. Kortus , A. Moewes , N. Miyata , M. Demeter , M. Neumann , M. Yanagihara

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M. Watanabe T. Muranaka J. Akimitsu

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classification cond-mat.supr-con cond-mat.mtrl-sci

keywords x-rayemissionspectraabsorptionbandssigmaaccountagreement

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Measurements of x-ray emission and absorption spectra of the constituents of MgB$_2$ are presented. The results obtained are in good agreement with calculated x-ray spectra, with dipole matrix elements taken into account. The comparison of x-ray emission spectra of graphite, AlB$_2$, and MgB$_2$ in the binding energy scale supports the idea of charge transfer from $\sigma$ to $\pi$ bands, which creates holes at the top of the bonding $\sigma$ bands and drives the high-T$_c$

Electronic structure of MgB₂: X-ray emission and absorption studies

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