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Magnetic structure of the antiferromagnetic Kondo lattice compounds CeRhAl4Si2 and CeIrAl4Si2 [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Science, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
Article numbers 245,603 : digital, PDF file
Additional Creators
Oak Ridge National Laboratory, United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Here, we have investigated the magnetic ground state of the antiferromagnetic Kondo- lattice compounds CeMAl4Si2 (M = Rh, Ir) using neutron powder diffraction. Although both of these compounds show two magnetic transitions TN1 and TN2 in the bulk properties measurements, evidence for magnetic long-range order was only found below the lower transition TN2. Analysis of the diffraction profiles reveals a commensurate antiferromagnetic structure with a propagation vector k= (0, 0, 1/2). The magnetic moment in the ordered state of CeRhAl4Si2 and CeIrAl4Si2 were determined to be 1.14(2) and 1.41(3) μB/Ce–1, respectively, and are parallel to the crystallographic c direction in agreement with magnetic susceptibility measurements.
Report Numbers
E 1.99:1338485
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Note
Published through SciTech Connect.
06/01/2015.
"KC0402010"
"ERKCSNX"
Journal of Physics. Condensed Matter 27 24 ISSN 0953-8984 AM
N. J. Ghimire; Stuart A. Calder; Marc Janoschek; E. D. Bauer.
Funding Information
AC05-00OR22725
View MARC record | catkey: 23759200