dc.contributor.advisor | Grande, Tor | nb_NO |
dc.contributor.advisor | Einarsrud, Mari-Ann | nb_NO |
dc.contributor.advisor | Selbach, Sverre M. | nb_NO |
dc.contributor.author | Hatling, Oddmund | nb_NO |
dc.date.accessioned | 2014-12-19T13:25:50Z | |
dc.date.available | 2014-12-19T13:25:50Z | |
dc.date.created | 2012-04-20 | nb_NO |
dc.date.issued | 2011 | nb_NO |
dc.identifier | 517076 | nb_NO |
dc.identifier | ntnudaim:6590 | nb_NO |
dc.identifier.uri | http://hdl.handle.net/11250/248926 | |
dc.description.abstract | In this report, 10 at% lanthanum was introduced to the perovskite structure of bismuth ferrite at the expense of bismuth through a modified Pechini wet chemical method. Green body powders were calcined at several temperatures, and the lattice parameters for each size were found by Rietveld refinement of X-ray powder diffraction data. The parameters displayed strong size-dependent properties, and the rhombohedral distortion from the cubic structure was reduced by decreased particle size. With decreasing crystallite size, the Néel temperature decreased and the cooperative cationic displacement (s - t) showed size dependence at crystallite sizes below 30 nm. A size-dependency was also observed in the Curie temperature. | nb_NO |
dc.language | eng | nb_NO |
dc.publisher | Institutt for materialteknologi | nb_NO |
dc.subject | ntnudaim:6590 | no_NO |
dc.subject | MTNANO Nanoteknologi | no_NO |
dc.subject | Nanoteknologi for materialer, energi og miljø | no_NO |
dc.title | Multiferroic, Magnetoelectric Nanoparticles: Lanthanum-substituted Bismuth Ferrite | nb_NO |
dc.type | Master thesis | nb_NO |
dc.source.pagenumber | 63 | nb_NO |
dc.contributor.department | Norges teknisk-naturvitenskapelige universitet, Fakultet for naturvitenskap og teknologi, Institutt for materialteknologi | nb_NO |