Zh. Kudyshev^1,2, I. Gabitov^3,4, and A. Maimistov^5,6

• ¹Department of Physics, Al-Farabi Kazakh National University, al-Farabi Avenue 71, Almaty 050038, Kazakhstan
• ²Department of Electrical Engineering, University at Buffalo, The State University of New York, 230 Davis Hall Buffalo, New York 14260-2500, USA
• ³Department of Mathematics, University of Arizona, 617 N. Santa Rita, Tucson, Arizona 85721-0089, USA
• ⁴Department of Mathematics, Southern Methodist University, 3200 Dyer Street, Dallas, Texas 75275-0156, USA
• ⁵Department of Solid State Physics and Nanosystems, National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow 115409, Russia
• ⁶Department of Physics and Technology of Nanostructures, Moscow Institute for Physics and Technology, Institutskii lane 9, Dolgoprudny, Moscow region 141700, Russia