Statistical Theory of Diffusion of a Hydrogen Atom in Metals with Close-Packed Lattice Taking into Account Fourth-Order Anharmonicity

摘要

Using the data on the quantum states and mechanisms of the interaction of an impurity hydrogen atom with metals, the over-barrier hopping of hydrogen at high temperatures is studied. It is shown that anharmonicity of the hydrogen atom vibrations affects the relaxation processes as a result of the interference with phonon scattering.