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dc.contributor.authorXiao, Chongen
dc.contributor.authorZhang, Jiajiaen
dc.contributor.authorXu, Jieen
dc.contributor.authorTong, Weien
dc.contributor.authorCao, Boxiaoen
dc.contributor.authorLi, Kunen
dc.contributor.authorPan, Bicaien
dc.contributor.authorSu, Haibinen
dc.contributor.authorXie, Yien
dc.identifier.citationXiao, C., Zhang, J., Xu, J., Tong, W., Cao, B., Li, K., et al. (2012). Quantum Tunneling of Magnetization in Ultrasmall Half-Metallic V3O4 Quantum Dots: Displaying Quantum Superparamagnetic State. Scientific Reports 2, 755.en
dc.description.abstractQuantum tunneling of magnetization (QTMs), stemming from their importance for understanding materials with unconventional properties, has continued to attract widespread theoretical and experimental attention. However, the observation of QTMs in the most promising candidates of molecular magnets and few iron-based compounds is limited to very low temperature. Herein, we first highlight a simple system, ultrasmall half-metallic V3O4 quantum dots, as a promising candidate for the investigation of QTMs at high temperature. The quantum superparamagnetic state (QSP) as a high temperature signature of QTMs is observed at 16 K, which is beyond absolute zero temperature and much higher than that of conventional iron-based compounds due to the stronger spin-orbital coupling of V3+ ions bringing high anisotropy energy. It is undoubtedly that this ultrasmall quantum dots, V3O4, offers not only a promising candidate for theoretical understanding of QTMs but also a very exciting possibility for computers using mesoscopic magnets.en
dc.relation.ispartofseriesScientific reportsen
dc.rights© 2012 The Authors. This paper was published in Scientific Reports and is made available as an electronic reprint (preprint) with permission of the authors. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectDRNTU::Science::Physics::Atomic physics::Quantum theoryen
dc.titleQuantum tunneling of magnetization in ultrasmall half-metallic V3O4 quantum dots : displaying quantum superparamagnetic stateen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.description.versionPublished versionen
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