Theoretical condensed matter physics

M. Dyakonov, Professor Emeritus of Physics, devotes his activity to the study of the physics of spin, plasma, and electronic and quantum detectors with very important discoveries and predictions (Dyakonov-Perel mechanism of spin relaxation, Spin Hall effect, Dyakonov-Shur 2d plasma instability, Dyakonov surface waves).

He recently developed a study on the dynamic coupling between spin and charge currents in non-magnetic conductors [Dyakonov, 2017]. He then revealed that due to this coupling, the spin dynamics is directly reflected in the electrical impedance of the sample, with a relevant frequency scale defined by spin relaxation and diffusion, allowing the observation of the electron spin resonance by purely electrical measurements [Alekseev and Dyakonov, 2019].

In electron physics he showed that an oscillation effect of the resistance in 2d, as a function of the ratio between the alternating field frequency and the cyclotron frequency, can be explained as a classical memory effect due to repeated collisions of electrons with impurities [Beltukov and Dyakonov, 2016]. Moreover, he showed that the negativemagneto-resistance of 2d electron systems is due to a hydrodynamic effect.

He also recently discussed the impossibility of realizing de-facto quantum computers [Dyakonov, 2014, 2019]