Direct estimation of zero-field energy gap in the nano-scale single molecular magnet V-15

TitleDirect estimation of zero-field energy gap in the nano-scale single molecular magnet V-15
Publication TypeJournal Article
Year of Publication2007
AuthorsKajiyoshi K, Kambe T, Mino M, Nojiri H, Kogerler P, Luban M
Journal TitleJournal of Magnetism and Magnetic Materials
Volume310
Pages1203-1205
Date PublishedMar
Type of ArticleProceedings Paper
ISBN Number0304-8853
Accession NumberISI:000247618700221
KeywordsDzyaloshinskii-Moriya, electron spin resonance (ESR), interaction (DMI), quantum tunneling, single molecular magnet (SMM), V-15
Abstract

The electron spin resonance (ESR) at low frequency (0.6-3 GHz) and at low temperature (-0.5 K) was performed for the single molecular magnet V-15. Non-linear field dependence of resonance at the lowest temperature implies the existence of the zero-field gap. The angle dependence of resonance field has strong anisotropy. We directly estimate the zero-field energy gap of 30 mK and analyze the energy levels using the model with Dzyaloshinskii-Moriya interaction. (c) 2006 Elsevier B.V. All rights reserved.

DOI10.1016/j.jmmm.2006.10.313
Alternate JournalJ. Magn. Magn. Mater.