Actions for Electronic Structure of Halogen Doped CuCr2Se4 [electronic resource].

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Electronic Structure of Halogen Doped CuCr2Se4 [electronic resource].

Published
Berkeley, Calif. : Lawrence Berkeley National Laboratory. Advanced Light Source, 2008.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Additional Creators
Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory. Advanced Light Source, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We have employed element and chemically sensitive X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) in order to address a long standing controversy regarding the electronic and magnetic state of CuCr₂Se₄ via halogen doping of the Se anion site in CuCr₂Se{sub 4-x}Yₓ (Y=Cl and Br). Long range magnetic order is observed above room temperature for all samples. The Cr L{sub 2,3} XAS spectra show a prevalent 3+ valence for the Cr ions independent of doping concentration and doping agent. The Cu L{sub 2,3} XAS spectra show a combination of 1+ and 2+ valence states for all samples. XMCD spectra indicate the presence of a magnetic moment associated with the Cu ions that is aligned antiparallel to the Cr moment.
Report Numbers
E 1.99:lbnl--106e
lbnl--106e
Other Subject(s)
Note
Published through SciTech Connect.
09/13/2008.
"lbnl--106e"
Journal of Applied Physics ISSN 0021-8979; JAPIAU FT
Suzuki, Y.; Stacy, A.M.; Butler, W.; Arenholz, E.; Idzerda, Y.I.; Bettinger, J.S.; Arenholz, Elke; Liberati, M.; Chopdekar, R.V.; Neulinger, J. R.
Funding Information
DE-AC02-05CH11231
View MARC record | catkey: 14061734