The study of dependence the infrared spectrum of magnetic fluid from magnetic field

Colloidal solution of ferromagnetic magnetite nanoparticles in magnetic field has vibrational-rotational IR spectrum. The energy of the vibrational levels does not depend on the induction of the external magnetic field, and the energy of the rotational levels depends linearly on it. The effect can be explained by the reorientation under the action of photons of the magnetic moments of nanoparticles in magnetic field.