Magnetic Excitation in Artificially Designed Oxygen Molecule Magnet
arXiv:0806.3117 · doi:10.1143/JPSJ.77.083703
Abstract
We performed inelastic neutron scattering experiment to study magnetic excitation of O$_2$ molecules adsorbed in microporous compound. The dispersionless excitation with characteristic intensity modulation is observed at $\hbar Ï= 7.8$ meV at low temperature. The neutron cross section is explained by spin dimer model with intradimer distance of 3.1 Ã . Anomalous behaviour in the temperature dependence is discussed in the context of enhanced magnetoelasticity in the soft framework of O$_2$ molecule.
4 pages, 5 figures, to be published in Journal of Physical Society of Japan