Tuneable magnetic phase transitions in layered CeMn2Ge2-xSix compounds

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dc.contributor.authorDin, MFMen_AU
dc.contributor.authorWang, JLen_AU
dc.contributor.authorCheng, ZXen_AU
dc.contributor.authorDou, SXen_AU
dc.contributor.authorKennedy, SJen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorCampbell, SJen_AU
dc.date.accessioned2021-01-05T22:31:44Zen_AU
dc.date.available2021-01-05T22:31:44Zen_AU
dc.date.issued2015-06-19en_AU
dc.date.statistics2021-01-05en_AU
dc.description.abstractThe structural and magnetic properties of seven CeMn2Ge2-xSix compounds with x = 0.0–2.0 have been investigated in detail. Substitution of Ge with Si leads to a monotonic decrease of both a and c along with concomitant contraction of the unit cell volume and significant modifications of the magnetic states - a crossover from ferromagnetism at room temperature for Ge-rich compounds to antiferromagnetism for Si-rich compounds. The magnetic phase diagram has been constructed over the full range of CeMn2Ge2-xSix compositions and co-existence of ferromagnetism and antiferromagnetism has been observed in CeMn2Ge1.2Si0.8, CeMn2Ge1.0Si1.0 and CeMn2Ge0.8Si1.2 with novel insight provided by high resolution neutron and X-ray synchrotron radiation studies. CeMn2Ge2-xSix compounds (x = 0, 0.4 and 0.8) exhibit moderate isothermal magnetic entropy accompanied with a second-order phase transition around room temperature. Analysis of critical behaviour in the vicinity of TCinter for CeMn2Ge2 compound indicates behaviour consistent with three-dimensional Heisenberg model predictions. © 2021 Springer Nature Limiteden_AU
dc.identifier.articlenumber11288en_AU
dc.identifier.citationMd Din, M. F., Wang, J. L., Cheng, Z. X., Dou, S. X., Kennedy, S. J., Avdeev, M., & Campbell, S. J. (2015). Tuneable magnetic phase transitions in layered CeMn2Ge2-xSix compounds. Scientific Reports, 5, 11288. doi:10.1038/srep11288en_AU
dc.identifier.issn2045-2322en_AU
dc.identifier.journaltitleScientific Reportsen_AU
dc.identifier.urihttps://doi.org/10.1038/srep11288en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10181en_AU
dc.identifier.volume5en_AU
dc.language.isoenen_AU
dc.publisherSpringer Natureen_AU
dc.subjectPhase transformationsen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectMagnetic materialsen_AU
dc.subjectFerromagnetismen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectPhysicsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectX-ray diffractionen_AU
dc.titleTuneable magnetic phase transitions in layered CeMn2Ge2-xSix compoundsen_AU
dc.typeJournal Articleen_AU
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