The hydrogen subsystem excitation in a solid by the external influence.

The experimental evidences of the hydrogen subsystem existence in solids and a possibility of its excitation by external influence are described. During occupation of equivalent positions inside metal, hydrogen forms its own subsystem inside a crystallographic lattice, which has the self-frequencies lying outside the phonon spectrum of a crystal. Under the input of the energy, for instance, by means of radiation, excitations of vibration freedom degrees of hydrogen subsystem occur. The following facts give evidence of this: enhanced migration and release of hydrogen isotopes at low temperature from metals under ionizing radiation; super linear dependence of H, D release from metals on electron current density; H, D release both in molecular and atomic forms. © 2006 American Institute of Physics [ABSTRACT FROM AUTHOR]