Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism
Abstract
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.
- Authors:
-
- 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)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1193381
- Alternate Identifier(s):
- OSTI ID: 1181326; OSTI ID: 1392388
- Report Number(s):
- LA-UR-14-28452
Journal ID: ISSN 1098-0121; PRBMDO
- Grant/Contract Number:
- AC02-06CH11357; FG02-03ER46097; AC52-06NA25396; DEFG02-03ER46097
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 91; Journal Issue: 3; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Janoschek, M., Haskel, D., Fernandez-Rodriguez, J., van Veenendaal, M., Rebizant, J., Lander, G. H., Zhu, J. -X., Thompson, J. D., and Bauer, E. D. Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism. United States: N. p., 2015.
Web. doi:10.1103/PhysRevB.91.035117.
Janoschek, M., Haskel, D., Fernandez-Rodriguez, J., van Veenendaal, M., Rebizant, J., Lander, G. H., Zhu, J. -X., Thompson, J. D., & Bauer, E. D. Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism. United States. https://doi.org/10.1103/PhysRevB.91.035117
Janoschek, M., Haskel, D., Fernandez-Rodriguez, J., van Veenendaal, M., Rebizant, J., Lander, G. H., Zhu, J. -X., Thompson, J. D., and Bauer, E. D. Wed .
"Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism". United States. https://doi.org/10.1103/PhysRevB.91.035117. https://www.osti.gov/servlets/purl/1193381.
@article{osti_1193381,
title = {Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism},
author = {Janoschek, M. and Haskel, D. and Fernandez-Rodriguez, J. and van Veenendaal, M. and Rebizant, J. and Lander, G. H. and Zhu, J. -X. and Thompson, J. D. and Bauer, E. D.},
abstractNote = {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.},
doi = {10.1103/PhysRevB.91.035117},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 3,
volume = 91,
place = {United States},
year = {Wed Jan 14 00:00:00 EST 2015},
month = {Wed Jan 14 00:00:00 EST 2015}
}
Web of Science
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Works referencing / citing this record:
Probing Magnetism in the Vortex Phase of by X-Ray Magnetic Circular Dichroism
journal, October 2017
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