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Magnetic Phase Separation in Vanadium-oxide Nanosheets
- Authors
- Kweon, Hyocheon; Lee, Kyu Won; Lee, Cheol Eui
- Issue Date
- 4월-2011
- Publisher
- KOREAN PHYSICAL SOC
- Keywords
- Mixed-phase vanadium oxide nanosheets; Ferromagnetic transition; Electron delocalization
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.58, no.4, pp.911 - 914
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- Volume
- 58
- Number
- 4
- Start Page
- 911
- End Page
- 914
- ISSN
- 0374-4884
- Abstract
- We have investigated the nature of charge-disproportionate spin states in mixed-phase vanadium-oxide nanosheets by using superconductive quantum interference device and electron spin resonance (ESR) measurements. The temperature dependencies of the ESR parameters corresponding to three distinct spin species manifested a ferromagnetic transition at 300 K and an electron delocalization at 350 K with an activation energy of 0.39 eV.
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