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Spin dimerization in a mixed-valent dodecylamine-intercalated vanadium oxide system
- Authors
- Kweon, Hyocheon; Lee, Kyu Won; Lee, Cheol Eui
- Issue Date
- 10월-2010
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Nanostructures; Chemical synthesis; Phase transitions; Electron paramagnetic resonance
- Citation
- SOLID STATE COMMUNICATIONS, v.150, no.39-40, pp.1880 - 1883
- Indexed
- SCIE
SCOPUS
- Journal Title
- SOLID STATE COMMUNICATIONS
- Volume
- 150
- Number
- 39-40
- Start Page
- 1880
- End Page
- 1883
- ISSN
- 0038-1098
- Abstract
- An apparent spin-Peierls transition involving abrupt spin dimerization has been identified at a high temperature of T-p = 375 K in a mixed-valent dodecylamine-intercalated vanadium oxide, a precursor to the vanadium oxide nanotubes. The temperature-dependent magnetic susceptibility in the spin-dimerized state below the transition temperature was explained by coexisting one-dimensional antiferromagnetic spins and dimer spins, the nonmagnetic V5+ ions in the system acting as nonmagnetic impurities giving rise to an impurity-induced antiferromagnetism, observed in (quasi-)one-dimensional spin gap systems. (C) 2010 Elsevier Ltd. All rights reserved.
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