We determined the bulk electronic structure in the prototypical Heusler compound Cu2MnAl by measuring the Angular Correlation of Annihilation Radiation (2D-ACAR) using spin-polarized positrons. To this end, a new algorithm for reconstructing 3D densities from projections is introduced that allows us to corroborate the excellent agreement between our electronic structure calculations and the experimental data. The contribution of each individual Fermi surface sheet to the magnetization was identified, and summed to a total spin magnetic moment of 3.6±0.5μB/f.u..
@article{arxiv.1510.07808,
title = {Spin-resolved Fermi surface of the localized ferromagnetic Heusler compound Cu$_2$MnAl measured with spin-polarized positron annihilation},
author = {Josef A. Weber and Andreas Bauer and Peter Böni and Hubert Ceeh and Stephen B. Dugdale and David Ernsting and Wolfgang Kreuzpaintner and Michael Leitner and Christian Pfleiderer and Christoph Hugenschmidt},
journal= {arXiv preprint arXiv:1510.07808},
year = {2016}
}