The magneto-structural transition in magnetocaloric Mn1-xFexCoGe

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dc.contributor.authorRen, QYen_AU
dc.contributor.authorHutchison, WDen_AU
dc.contributor.authorWang, JLen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorDin, MFMen_AU
dc.contributor.authorMuñoz-Pérez, Sen_AU
dc.contributor.authorCadogan, JMen_AU
dc.contributor.authorCampbell, SJen_AU
dc.date.accessioned2021-08-13T02:12:54Zen_AU
dc.date.available2021-08-13T02:12:54Zen_AU
dc.date.issued2015-02-03en_AU
dc.date.statistics2021-08-12en_AU
dc.description.abstractMagnetic refrigeration techniques based on the magnetocaloric effect are considered an increasingly viable alternative to conventional gas-compression refrigerant, particularly with energy-saving and environmental aspects in mind. Following the discovery of a large magnetocaloric effect in Gd5Si2Ge2, researchers have shifted their attention to investigation of materials exhibiting magneto-structural transitions where large magnetic entropy changes are expected. MnCoGe-based compounds are promising materials for the exploration of large magnetocaloric effects. They are relatively cheap (no rare earth elements) and, importantly, allow an appropriate temperature window (275 – 345 K) around room temperature in which the magneto-structural transition may be positioned. It has been established that Fe is a suitable substitute for Mn to ‘tune’ the structural transition temperature and hence obtain a magneto-structural transition. Here we present the results of a detailed investigation of the structural and magnetic properties and magnetocaloric effect for a range of as-prepared Mn1-xFexCoGe alloys (x = 0.01, 0.02, 0.03 and 0.04) using temperature variable x-ray diffraction (20 – 310 K), neutron diffraction (5 – 450 K) and physical properties measurement system (PPMS, 5 – 300 K). Particular attention will focus on analysis of neutron diffraction data for Mn0.98Fe0.02CoGe and the nature of the magnetic phase transition in Mn0.98Fe0.02CoGe.en_AU
dc.identifier.citationRen, Q. Y., Hutchison, W. D., Wang, J., L., Studer, A. J., Md Din, M. F., Muñoz Pérez, S., Cadogan, J. M., & Campbell, S. J. (2015). The magneto-structural transition in magnetocaloric Mn1-xFexCoGe. Paper presented at the 39th Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, 3 February 2015 - 6 February 2015, (pp. 59). Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2015/Wagga2015_10_Handbook.pdfen_AU
dc.identifier.conferenceenddate6 February 2015en_AU
dc.identifier.conferencename39th Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate3 February 2015en_AU
dc.identifier.isbn978-0-646-96433-1en_AU
dc.identifier.pagination59en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2015/Wagga2015_10_Handbook.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11348en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectCobalt alloysen_AU
dc.subjectCooling systemsen_AU
dc.subjectEnergy conservationen_AU
dc.subjectEntropyen_AU
dc.subjectGermanium alloysen_AU
dc.subjectMagnetic fieldsen_AU
dc.subjectMagnetic refrigeratorsen_AU
dc.subjectManganese alloysen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectTemperature dependenceen_AU
dc.subjectX-ray diffractionen_AU
dc.titleThe magneto-structural transition in magnetocaloric Mn1-xFexCoGeen_AU
dc.typeConference Abstracten_AU
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