Ferromagnetism in water-doped vanadium oxide nanotubes

Hyocheon Kweon; Kyu Won Lee; Cheol Eui Lee

doi:10.1063/1.3463425

Ferromagnetism in water-doped vanadium oxide nanotubes

Hyocheon Kweon, Kyu Won Lee, Cheol Eui Lee

Department of Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We have investigated the magnetic properties of vanadium oxide nanotubes (VO_x -NTs) of various V⁴⁺ concentrations. Ferromagnetic response was observed at ∼100 K only in the V⁴⁺ -rich water-intercalated VO_x -NTs, whose saturation moment is close to that of Li-doped VO_x -NTs, a recently-reported room-temperature ferromagnet. The ferromagnetism may have to do with charge localization as well as the spin concentration giving rise to removal of spin frustration according to our previous study.

Original language	English
Article number	023905
Journal	Journal of Applied Physics
Volume	108
Issue number	2
DOIs	https://doi.org/10.1063/1.3463425
Publication status	Published - 2010 Jul 15

Bibliographical note

Funding Information:
This work was supported by the Korea Ministry of Education, Science and Technology (NRL Program R0A-2008-000-20066-0 and Project No. 20090082672). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Ferromagnetism in water-doped vanadium oxide nanotubes",

abstract = "We have investigated the magnetic properties of vanadium oxide nanotubes (VOx -NTs) of various V4+ concentrations. Ferromagnetic response was observed at ∼100 K only in the V4+ -rich water-intercalated VOx -NTs, whose saturation moment is close to that of Li-doped VOx -NTs, a recently-reported room-temperature ferromagnet. The ferromagnetism may have to do with charge localization as well as the spin concentration giving rise to removal of spin frustration according to our previous study.",

author = "Hyocheon Kweon and Lee, {Kyu Won} and Lee, {Cheol Eui}",

note = "Funding Information: This work was supported by the Korea Ministry of Education, Science and Technology (NRL Program R0A-2008-000-20066-0 and Project No. 20090082672). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.",

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AU - Lee, Kyu Won

AU - Lee, Cheol Eui

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PY - 2010/7/15

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N2 - We have investigated the magnetic properties of vanadium oxide nanotubes (VOx -NTs) of various V4+ concentrations. Ferromagnetic response was observed at ∼100 K only in the V4+ -rich water-intercalated VOx -NTs, whose saturation moment is close to that of Li-doped VOx -NTs, a recently-reported room-temperature ferromagnet. The ferromagnetism may have to do with charge localization as well as the spin concentration giving rise to removal of spin frustration according to our previous study.

AB - We have investigated the magnetic properties of vanadium oxide nanotubes (VOx -NTs) of various V4+ concentrations. Ferromagnetic response was observed at ∼100 K only in the V4+ -rich water-intercalated VOx -NTs, whose saturation moment is close to that of Li-doped VOx -NTs, a recently-reported room-temperature ferromagnet. The ferromagnetism may have to do with charge localization as well as the spin concentration giving rise to removal of spin frustration according to our previous study.

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Ferromagnetism in water-doped vanadium oxide nanotubes

Abstract

Bibliographical note

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