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Fermi surface of Cu2MnAl

Spin-Resolved Fermi Surface of the Localized Ferromagnetic Heusler Compound Cu2MnAl Measured with Spin-Polarized Positron Annihilation

In this paper we employ angular correlation of positron annihilation radiation to determine the momentum density of the annihilating positron-electron pairs. We use the spin polarization of the positrons emitted by the 22Na-source to separate majority and minority contributions in the magnetic system. The isosurfaces of the electron densities agree nicely with those predicted by density-functional calculations.

It is published in Physical Review Letters, volume 115, 206404. It is freely accessible here, note that the copyright is held by the American Physical Society.
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