Magnetic Excitation in Artificially Designed Oxygen Molecule Magnet

T. Masuda; S. Takamizawa; K. Hirota; M. Ohba; S. Kitagawa

doi:10.1143/JPSJ.77.083703

Magnetic Excitation in Artificially Designed Oxygen Molecule Magnet

Strongly Correlated Electrons 2009-11-13 v1 Materials Science

Authors: T. Masuda , S. Takamizawa , K. Hirota , M. Ohba , S. Kitagawa

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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 $\hbar \omega = 7.8$ meV at low temperature. The neutron cross section is explained by spin dimer model with intradimer distance of 3.1 \AA . Anomalous behaviour in the temperature dependence is discussed in the context of enhanced magnetoelasticity in the soft framework of O $_2$ molecule.

Keywords

spin excitations in condensed matter magnetic materials and spin systems magnetization

Cite

@article{arxiv.0806.3117,
  title  = {Magnetic Excitation in Artificially Designed Oxygen Molecule Magnet},
  author = {T. Masuda and S. Takamizawa and K. Hirota and M. Ohba and S. Kitagawa},
  journal= {arXiv preprint arXiv:0806.3117},
  year   = {2009}
}

Comments

4 pages, 5 figures, to be published in Journal of Physical Society of Japan

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