Igor Vladimirovich Kukushkin

Igor Wladimirowitsch Kukushkin ( Russian Игорь Владимирович Кукушкин , English transcription Igor Kukushkin; born February 20, 1958 in Krasnoarmeisk ) is a Russian solid-state physicist.

Kukushkin studied at the Moscow Institute of Physics Technology (MIPT) and then went to the Institute of Solid State Physics of the Soviet Academy of Sciences. He received his doctorate in 1983 and was awarded a Humboldt Research Prize in 1987 by Klaus von Klitzing in Stuttgart. In 1991 he received his habilitation (Russian doctorate) and was professor at Lomonossow University from 1997 .

He deals with semiconductor physics , excitons and exciton molecules and liquids in silicon and germanium semiconductors. For the first time he was able to observe exciton molecules in germanium crystals (instability of the exciton liquid in the case of unusual deformation states of a germanium crystal) and investigated their properties. With the help of strong magnetic fields, this system was successfully characterized as an exciton gas as a precursor to a Bose-Einstein condensate of excitons. That was the subject of his dissertation from 1983.

Kukuschkin proposed a new magneto-optical method for studying the electron spectrum in two-dimensional MOS silicon structures and thus investigated the quantum Hall effect. He measured the energy spectrum in the fractional quantum Hall effect (FQHE) for various associated FQHE quantum numbers and showed their collective nature. With his method he also investigated the transition from two-dimensional electron systems to a Wigner crystal at sufficiently low temperatures with evidence of a corresponding phase transition. The work on the Wigner crystal and the FQHE was the subject of his habilitation thesis.

Recently he has developed new techniques for the optical investigation of various types of magnetic resonance in solids. With this he succeeded in detecting skyrmions in the quantum hall effect and the discovery of a new type of collective quasiparticle excitation in the quantum hall effect (i.e. two-dimensional electron systems in a magnetic field).

In 1997 he became a corresponding and in 2016 a full member of the Russian Academy of Sciences . In 2001 he received the Max Planck Research Award, among other things, for his contribution to the study of the fractional quantum Hall effect . In 1988 he received the Lenin Komsomol Prize for this.

He is editor in the solid state physics section of the Central European Science Journal.

Web links

• English biography at the Institute for Solid State Physics of the Russ. Akad. Wiss.