Role of paramagnetic ions in formation of low-temperature current through a molecular wire

The mechanism of the formation of inelastic current through a molecular wire is considered under the conditions of a strong transferred electrons interaction as well as under fast vibrational and spin relaxation within each center of electron localization in the wire. Paramagnetic ions embedded at the electron localization centers are supposed to have 'frozen' angular momenta. It is shown that these ions are able not only to form a spin-polarized current but to block this current as well