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Title: Magnetic ordering in Ho2Fe2Si2C
Authors: Susilo, RA
Cadogan, JM
Cobas, R
Hutchison, WD
Avdeev, M
Campbell, SJ
Keywords: Neutron diffraction
Heat treatments
Hyperfine structure
Crystal structure
Issue Date: 23-Feb-2015
Publisher: American Institute of Physics
Citation: Susilo, R. A., Cadogan, J. M., Cobas, R., Hutchison, W. D., Avdeev, M., & Campbell, S. J. (2015). Magnetic ordering in Ho2Fe2Si2C. Journal of Applied Physics 117(17), 17C113. doi:10.1063/1.4913302
Abstract: We have used neutron diffraction and 57Fe M€ossbauer spectroscopy, complemented by magnetisation and specific heat measurements, to examine the magnetic ordering of Ho2Fe2Si2C. We have established that Ho2Fe2Si2C orders antiferromagnetically below TN¼ 16(1) K with a magnetic structure involving ordering of the Ho sublattice along the b-axis with a propagation vector k ¼ ½0 0 12. 57Fe M€ossbauer spectra collected below TN show no evidence of a magnetic splitting, demonstrating the absence of long range magnetic ordering of the Fe sublattice. A small line broadening is observed in the 57Fe spectra below TN, which is due to a transferred hyperfine field—estimated to be around 0.3 T at 10 K—from the Ho sublattice. VC 2015 AIP Publishing LLC.
ISSN: 1089-7550
Appears in Collections:Journal Articles

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