Compton Scattering Study of Electron Momentum Density in Vanadium

Nobuhiro Shiotani; Yoshikazu Tanaka; Yoshiharu Sakurai; Nobuhiko Sakai; Masahisa Ito; Fumitake Itoh; Toshiaki Iwazumi; Hiroshi Kawata

doi:10.1143/JPSJ.62.239

Nobuhiro Shiotani, Yoshikazu Tanaka, Yoshiharu Sakurai, Nobuhiko Sakai, Masahisa Ito, Fumitake Itoh, Toshiaki Iwazumi, Hiroshi Kawata

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Keywords: Compton profile, electron momentum density, vanadium, synchrotron radiation

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1993 Volume 62 Issue 1 Pages 239-245

DOI https://doi.org/10.1143/JPSJ.62.239

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Abstract

The [100], [110] and [111] Compton profiles of vanadium are measured with a momentum resolution of 0.12 atomic units. The observed profiles have fine structures and directional anisotropies. Comparison of the results with the APW band theoretical predictions shows that the band theory overestimates the momentum density at low momenta and underestimates it at high momenta. The theory also overemphasizes the fine structures and the scale of the anisotropies.

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