Spin dimerization in a mixed-valent dodecylamine-intercalated vanadium oxide system

Kweon, Hyocheon; Lee, Kyu Won; Lee, Cheol Eui

doi:10.1016/j.ssc.2010.07.044

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Spin dimerization in a mixed-valent dodecylamine-intercalated vanadium oxide system

Kweon, Hyocheon;
Lee, Kyu Won;
Lee, Cheol Eui

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초록

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.

키워드

Nanostructures; Chemical synthesis; Phase transitions; Electron paramagnetic resonance; METAL-INSULATOR-TRANSITION; THIOSPINEL CUIR2S4; ANTIFERROMAGNETIC PHASES; PEIERLS CUPRATE; DOPED CUGEO3; NAV2O5; NANOTUBES; COMPOUND; ELECTRON; ORDER

제목: Spin dimerization in a mixed-valent dodecylamine-intercalated vanadium oxide system

저자: Kweon, Hyocheon; Lee, Kyu Won; Lee, Cheol Eui

DOI: 10.1016/j.ssc.2010.07.044

발행일: 2010-10

유형: Article

저널명: Solid State Communications

권: 150

호: 39-40

페이지: 1880 ~ 1883