The effect of regularization on the reconstruction of ACAR data

Weber, J.; Ceeh, Hubert; Hugenschmidt, C.; Leitner, Michael; Böni, P.

doi:10.1088/1742-6596/505/1/012047

J. Phys.: Conf. Ser.

2014

DOI: 10.1088/1742-6596/505/1/012047

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The effect of regularization on the reconstruction of ACAR data

J. Weber

Hubert Ceeh

C. Hugenschmidt

et al.

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“…Since this minimization problem is underdetermined with the typical number of measured projections, it is necessary to apply a regularization functional. The most popular choice for the reconstruction of 2D-ACAR data, and the one used here, is an entropylike function gðxÞ ¼ P i x i lnðx i Þ [32], although other regularization functionals have been investigated, too [33,34].…”

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Spin-Resolved Fermi Surface of the Localized Ferromagnetic Heusler CompoundCu2MnAlMeasured with Spin-Polarized Positron Annihilation

et al. 2015

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Hugenschmidt, C. (2015). Spin-resolved fermi surface of the localized ferromagnetic Heusler compound Cu2MnAl measured with spin-polarized positron annihilation. Physical Review Letters, 115(20) We determined the bulk electronic structure of the prototypical Heusler compound Cu 2 MnAl by measuring the angular correlation of annihilation radiation 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 AE 0.5 μ B =f:u:.

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Spin-Resolved Fermi Surface of the Localized Ferromagnetic Heusler CompoundCu2MnAlMeasured with Spin-Polarized Positron Annihilation

et al. 2015

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The effect of regularization on the reconstruction of ACAR data

Cited by 1 publication

References 11 publications

Spin-Resolved Fermi Surface of the Localized Ferromagnetic Heusler CompoundCu2MnAlMeasured with Spin-Polarized Positron Annihilation

Spin-Resolved Fermi Surface of the Localized Ferromagnetic Heusler CompoundCu2MnAlMeasured with Spin-Polarized Positron Annihilation

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