Crystal growth and thermoelectric properties of CaMn0.98Nb0.02O3-delta

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dc.contributor.authorAlfaruq, DSen_AU
dc.contributor.authorAguirre, MHen_AU
dc.contributor.authorOtal, EHen_AU
dc.contributor.authorPopuloh, Sen_AU
dc.contributor.authorKarvonen, Len_AU
dc.contributor.authorYoon, Sen_AU
dc.contributor.authorLu, Yen_AU
dc.contributor.authorDeng, Gen_AU
dc.contributor.authorEbbinghaus, SGen_AU
dc.contributor.authorWeidenkaff, Aen_AU
dc.date.accessioned2014-06-11T04:08:07Zen_AU
dc.date.available2014-06-11T04:08:07Zen_AU
dc.date.issued2013-08-15en_AU
dc.date.statistics2014-06-11en_AU
dc.description.abstractThermoelectric CaMn0.98Nb0.02O3-delta single crystals were grown from sintered polycrystalline material using the traveling-solvent floating zone (TSFZ) method. The floating-zone furnace was operated at over-pressure using an Ar/O-2 mixture to prevent evaporation during the growth process. Six twin-domain variants were detected with single-crystal X-ray diffraction (XRD) and confirmed by electron diffraction (ED) and high-resolution transmission electron microscopy (HRTEM). The Seebeck coefficient (S) of the single-crystalline material indicates n-type semiconducting behavior. Within 10 K < T < 125 K a negative peak in S is observed, known to be characteristic of antiferromagnetic ordering. The ferromagnetic long-range ordering, expected on the basis of double exchange between Mn4+ and doped Mn3+ species, thus appears to remain suppressed in the single-crystalline material. © 2013, Elsevier Ltd.en_AU
dc.identifier.citationAlfaruq, D. S., Aguirre, M. H., Otal, E. H., Populoh, S., Karvonen, L., Yoon, S., Lu, Y., Deng, G., Ebbinghaus, S. G., & Weidenkaff, A. (2013). Crystal growth and thermoelectric properties of CaMn0.98Nb0.02O3-delta. Journal of Crystal Growth, 377, 170-177. doi:10.1016/j.jcrysgro.2013.05.020en_AU
dc.identifier.govdoc5060en_AU
dc.identifier.issn0022-0248en_AU
dc.identifier.journaltitleJournal of Crystal Growthen_AU
dc.identifier.pagination170-177en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jcrysgro.2013.05.020en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5685en_AU
dc.identifier.volume377en_AU
dc.language.isoenen_AU
dc.publisherElsevier Science B.V.en_AU
dc.subjectCrystal growthen_AU
dc.subjectCrystalsen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectPerovskiteen_AU
dc.subjectCalciumen_AU
dc.subjectConversionen_AU
dc.titleCrystal growth and thermoelectric properties of CaMn0.98Nb0.02O3-deltaen_AU
dc.typeJournal Articleen_AU
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