Polarized neutron reflectometry of rare-earth nitride thin films

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dc.contributor.authorBrück, Sen_AU
dc.contributor.authorCortie, DLen_AU
dc.contributor.authorBrown, Jen_AU
dc.contributor.authorSaerbeck, Ten_AU
dc.contributor.authorUlrich, Cen_AU
dc.contributor.authorKlose, Fen_AU
dc.contributor.authorDownes, Jen_AU
dc.date.accessioned2022-08-19T02:02:56Zen_AU
dc.date.available2022-08-19T02:02:56Zen_AU
dc.date.issued2012-02-02en_AU
dc.date.statistics2021-09-10en_AU
dc.description.abstractRare-earth monopnictides like HoN, DyN, or ErN are semiconductors with typical band gaps between 0.73 and 1.3eV. The fact that they exhibit ferromagnetic ordering at low temperatures makes them possible candidates for an intrinsically ferromagnetic semiconductor [1]. Thin, polycrystalline rare-earth nitride films of 15 – 40nm thickness were grown onto c-plane sapphire substrates using low-energy ion assisted deposition. A temperature- and field-dependent polarized neutron reflectometry study in combination with SQUID magnetometry was carried out to characterize the magnetic properties of these films in a depth resolved way. The investigated samples show a homogeneous distribution of the magnetic moment throughout the film with ferromagnetic ordering temperatures comparable to the bulk materials. ErN and HoN films do not show an opening of the magnetic hysteresis loop even for the lowest measured temperature of T=2K. DyN on the other hand clearly shows a coercive field and remnant magnetization at 5K.en_AU
dc.identifier.citationBrück, S., Cortie, D., Brown, J., Saerbeck, T., Ulrich, C., Klose, F., & Downes, J. (2012). Polarized neutron reflectometry of rare-earth nitride thin films. Poster presented to the 36th Annual Condensed Matter and Materials Meeting, Wagga 2012, Charles Sturt University, Wagga Wagga, NSW 31st January – 3rd February, 2012. Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2012/en_AU
dc.identifier.conferenceenddate3 February 2012en_AU
dc.identifier.conferencename36th Annual Condensed Matter and Materials Meeting, Wagga 2012en_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate31 January 2012en_AU
dc.identifier.isbn978-0-646-57071-6en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2012/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13577en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectPolarizationen_AU
dc.subjectRare earthsen_AU
dc.subjectSuperconductorsen_AU
dc.subjectFerromagnetic materialsen_AU
dc.subjectTemperature range 0065-0273 Ken_AU
dc.subjectFilmsen_AU
dc.subjectNitridesen_AU
dc.titlePolarized neutron reflectometry of rare-earth nitride thin filmsen_AU
dc.typeConference Posteren_AU
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