Magnetic ordering in Ho2Fe2Si2C

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Date
2015-02-23
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics
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.
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Keywords
Neutron diffraction, Magnetism, Heat treatments, Antiferromagnetism, Hyperfine structure, Crystal structure
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
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