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.
Description
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