The magnetic structure of Er 2MgGe 2

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dc.contributor.authorSusilo, RAen_AU
dc.contributor.authorCadogan, JMen_AU
dc.contributor.authorCampbell, SJen_AU
dc.contributor.authorSuen, NTen_AU
dc.contributor.authorBobev, Sen_AU
dc.contributor.authorAvdeev, Men_AU
dc.date.accessioned2021-07-27T02:53:19Zen_AU
dc.date.available2021-07-27T02:53:19Zen_AU
dc.date.issued2013-12-03en_AU
dc.date.statistics2021-07-26en_AU
dc.descriptionHard copy held by ANSTO Library ad DDC no. 539.758/15en_AU
dc.description.abstractA series of Mg-based germanides, R_2MgGe_2 have been synthesized with the heavy R elements. They crystallize in the tetragonal Mo_2FeB_2-type structure with the P4/mbm space group. The R_2MgGe_2 compounds are antiferromagnets with Neel temperatures ranging from 150 K (R = Gd) to 13 K (R = Sm). However, no sign of magnetic order has been observed for Er_2MgGe_2 and Tm_2MgGe_2, down to 5 K. Electronic structure calculations on Gd_2MgGe_2 suggest that the magnetic order of tnese compounds might be more complex than a simple collinear antiferromagnetism. In this report, we present our neutron diffraction studies of Er_2MgGe_2 to search for magnetic order and to determine the magnetic structure if order is indeed observed. We find that Er_2MgGe_2 orders antiferromagnetically at ~4 K. At 3 K, the magnetic structure can be described by a propagation vector of k = ["1/_2, "1/_2, "1/_4], with the Er magnetic moments forming a non-collinear antiferromagnetic structure with an intermediate planar arrangement.en_AU
dc.identifier.citationSusilo, R. A., Cadogan, J. M., Campbell, S. J., Suen, N. T., Bobev, S., & Avdeev, M. (2013). The magnetic structure of Er 2MgGe 2. Paper presented at 11th AINSE-ANBUG Neutron Scattering Symposium AANSS 2013, Sydney, NSW (Australia); 2-3 December 2013.en_AU
dc.identifier.conferenceenddate3 December 2013en_AU
dc.identifier.conferencename11th AINSE-ANBUG Neutron Scattering Symposium AANSS 2013en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate2 December 2013en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11101en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Nuclear Science and Engineeringen_AU
dc.subjectAntiferromagnetic materialsen_AU
dc.subjectOrder parametersen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectNeel temperatureen_AU
dc.subjectGermanidesen_AU
dc.subjectElectronic structureen_AU
dc.titleThe magnetic structure of Er 2MgGe 2en_AU
dc.typeConference Abstracten_AU
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