Actions for Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism [electronic resource].

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Ground-state wave function of plutonium in PuSb as determined via x-ray magnetic circular dichroism [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
Article numbers 035,117 : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy. Office of Basic Energy Sciences, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Measurements of x-ray magnetic circular dichroism (XMCD) and x-ray absorption near-edge structure (XANES) spectroscopy at the Pu M4,5 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 [μL = 2.8(1)μB/Pu] and spin moments [μS = –2.0(1)μB/Pu] of the Pu 5f electrons for the first time. 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 Lz and Sz 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. We demonstrate that a split M5 as well as a narrow M4 XMCD signal may serve as a signature of 5f electron localization in actinide compounds.
Report Numbers
E 1.99:la-ur--14-28452
la-ur--14-28452
Subject(s)
Note
Published through SciTech Connect.
01/14/2015.
"la-ur--14-28452"
Physical Review. B, Condensed Matter and Materials Physics 91 3 ISSN 1098-0121; PRBMDO AM
Janoschek, M.; Haskel, D.; Fernandez-Rodriguez, J.; van Veenendaal, M.; Rebizant, J.; Lander, G.; Zhu, J.; Thompson, J.; Bauer, E.
Funding Information
AC02-06CH11357
FG02-03ER46097
AC52-06NA25396
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