Fermi-surface mapping from Compton profiles: Application to beryllium

Details Fermi-surface mapping from Compton profiles: Application to beryllium Fermi-surface mapping from Compton profiles: Application to beryllium

2003-06-23

arxiv.org/abs/cond-mat/0306577v1

Phys. Rev. B 68, 155106 (2003)

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.68.155106

The two-dimensional momentum density of Be on the basal GMK plane, i.e. the line integral of the three-dimensional momentum density along the c-axis, is reconstructed via the Cormack method from both experimental and theoretical Compton profiles. It is shown that in the case of Be, despite the momentum density is highly anisotropic, merely two Compton profiles are sufficient to reproduce the main features of the momentum density. The analysis of the reconstructed densities is performed both in the extended and reduced zone schemes.

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