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

doi:10.1103/PhysRevLett.115.206404

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

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

18 Citations (Scopus)

376 Downloads (Pure)

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 ± 0.5μ_B/f.u.

Original language	English
Article number	206404
Number of pages	5
Journal	Physical Review Letters
Volume	115
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.115.206404
Publication status	Published - 11 Nov 2015

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10.1103/PhysRevLett.115.206404

PhysRevLett.115.206404
© 2015 American Physical Society
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Weber, J. A., Bauer, A., Böni, P., Ceeh, H., Dugdale, S. B., Ernsting, D., Kreuzpaintner, W., Leitner, M., Pfleiderer, C., & 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), [206404]. https://doi.org/10.1103/PhysRevLett.115.206404

Weber, Josef A. ; Bauer, Andreas ; Böni, Peter ; Ceeh, Hubert ; Dugdale, Stephen B. ; Ernsting, David ; Kreuzpaintner, Wolfgang ; Leitner, Michael ; Pfleiderer, Christian ; Hugenschmidt, Christoph. / Spin-resolved fermi surface of the localized ferromagnetic Heusler compound Cu2MnAl measured with spin-polarized positron annihilation. In: Physical Review Letters. 2015 ; Vol. 115, No. 20.

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

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.",

author = "Weber, {Josef A.} and Andreas Bauer and Peter B{\"o}ni and Hubert Ceeh and Dugdale, {Stephen B.} and David Ernsting and Wolfgang Kreuzpaintner and Michael Leitner and Christian Pfleiderer and Christoph Hugenschmidt",

year = "2015",

month = nov,

day = "11",

doi = "10.1103/PhysRevLett.115.206404",

language = "English",

volume = "115",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society (APS)",

number = "20",

}

Spin-resolved fermi surface of the localized ferromagnetic Heusler compound Cu2MnAl measured with spin-polarized positron annihilation. / Weber, Josef A.; Bauer, Andreas; Böni, Peter; Ceeh, Hubert; Dugdale, Stephen B.; Ernsting, David; Kreuzpaintner, Wolfgang; Leitner, Michael; Pfleiderer, Christian; Hugenschmidt, Christoph.

In: Physical Review Letters, Vol. 115, No. 20, 206404, 11.11.2015.

Research output: Contribution to journal › Article (Academic Journal) › peer-review

TY - JOUR

T1 - Spin-resolved fermi surface of the localized ferromagnetic Heusler compound Cu2MnAl measured with spin-polarized positron annihilation

AU - Weber, Josef A.

AU - Bauer, Andreas

AU - Böni, Peter

AU - Ceeh, Hubert

AU - Dugdale, Stephen B.

AU - Ernsting, David

AU - Kreuzpaintner, Wolfgang

AU - Leitner, Michael

AU - Pfleiderer, Christian

AU - Hugenschmidt, Christoph

PY - 2015/11/11

Y1 - 2015/11/11

N2 - 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.

AB - 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.

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VL - 115

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 20

M1 - 206404

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

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Fermiology and spin densities from high energy X-Ray scattering

Cu2MnAl (positron)

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Professor Stephen B Dugdale

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

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Projects

Fermiology and spin densities from high energy X-Ray scattering

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Cu2MnAl (positron)

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HPC (High Performance Computing) Facility

Profiles

Professor Stephen B Dugdale

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