Spin-resolved fermi surface of the localized ferromagnetic Heusler compound Cu2MnAl measured with spin-polarized positron annihilation

Josef A. Weber*, Andreas Bauer, Peter Böni, Hubert Ceeh, Stephen B. Dugdale, David Ernsting, Wolfgang Kreuzpaintner, Michael Leitner, Christian Pfleiderer, Christoph Hugenschmidt

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

14 Citations (Scopus)
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Abstract

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.
Original languageEnglish
Article number206404
Number of pages5
JournalPhysical Review Letters
Volume115
Issue number20
DOIs
Publication statusPublished - 11 Nov 2015

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