1. Theoretical Department, Vereshchagin Institute of High Pressure Physics Russian Academy of Sciences Moscow (Troitsk) 108840 Russia
2. Institute of Mathematics, Informatics and Physics, Condensed Matter Physics Lab Udmurt State University Izhevsk 426034 Russia
3. Laboratory of Multi‐scale Mathematical Modeling, Department of Theoretical and Mathematical Physics Ural Federal University Yekaterinburg 620000 Russia
4. Department of Physics Bauman Moscow State Technical University Moscow 105005 Russia
5. Faculty of Physics and Astronomy, Otto Schott Institute for Materials Research Friedrich Schiller University Jena 07743 Germany