Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism

Janoschek, M.; Haskel, D.; Fernandez-Rodriguez, J.; van Veenendaal, M.; Rebizant, J.; Lander, G. H.; Zhu, J. -X.; Thompson, J. D.; Bauer, E. D.

doi:10.1103/PhysRevB.91.035117

Title: Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism

Journal Article · Wed Jan 14 00:00:00 EST 2015 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.91.035117· OSTI ID:1193381

Janoschek, M. ^[1]; Haskel, D. ^[2]; Fernandez-Rodriguez, J. ^[3]; van Veenendaal, M. ^[4]; Rebizant, J. ^[5]; Lander, G. H. ^[5]; Zhu, J. -X. ^[1]; Thompson, J. D. ^[1]; Bauer, E. D. ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
Argonne National Lab. (ANL), Argonne, IL (United States); Northern Illinois Univ., DeKalb, IL (United States)
Argonne National Lab. (ANL), Argonne, IL (United States); Northern Illinois Univ., DeKalb, IL (United States)
Institute for Transuranium Elements, Karlsruhe (Germany)

Measurements of x-ray magnetic circular dichroism (XMCD) and x-ray absorption near-edge structure (XANES) spectroscopy at the Pu M-4,M-5 edges of the ferromagnet PuSb are reported. Using bulk magnetization measurements and a sum rule analysis of the XMCD spectra, we determine the individual orbital [mu(L) = 2.8(1)mu(B)/Pu] and spin moments [mu(S) = -2.0(1)mu(B)/Pu] of the Pu 5f electrons. Atomic multiplet calculations of the XMCD and XANES spectra reproduce well the experimental data and are consistent with the experimental value of the spin moment. These measurements of < L-z > and < S-z > are in excellent agreement with the values that have been extracted from neutron magnetic form factor measurements, and confirm the local character of the 5f electrons in PuSb. Finally, we demonstrate that a split M-5 as well as a narrow M-4 XMCD signal may serve as a signature of 5f electron localization in actinide compounds.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357; FG02-03ER46097; AC52-06NA25396; DEFG02-03ER46097

OSTI ID:: 1193381

Alternate ID(s):: OSTI ID: 1181326; OSTI ID: 1392388

Report Number(s):: LA-UR-14-28452; PRBMDO

Journal Information:: Physical Review. B, Condensed Matter and Materials Physics, Vol. 91, Issue 3; ISSN 1098-0121

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 5 works

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Cited By (1)

Probing Magnetism in the Vortex Phase of ${PuCoGa}_{5}$ by X-Ray Magnetic Circular Dichroism Magnani, N.; Eloirdi, R.; Wilhelm, F. Physical Review Letters, Vol. 119, Issue 15 https://doi.org/10.1103/physrevlett.119.157204	journal	October 2017

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