Superconductivity, Magnetism, and Fluctuation Phenomena

The project will endeavor theoretical and experimental research of superconductivity, magnetism, and critical phenomena (fluctuations), divided in five interrelated topics. The 1st topic covers investigation of: (a) Long-range spin-triplet proximity effect in superconductor-ferromagnet heterostructures (including a study of the current noise and multiterminal current cross correlations); (b) Numerical simulations of various effects in cuprate high-temperature superconductors and parent compounds; (c) Polaron formation in cuprates and organic (molecular) semiconductors for spintronics. The 2nd topic is related to: (a) High precision ac magnetic susceptibility and electrical resistance measurements of lightly doped superconducting cuprates; (b) Investigation of exotic phases in strongly correlated electron systems (ruthenates, iridates, cobaltites, and titanates). The 3rd topic is focused on theoretical investigation of cuprates by Monte Carlo and cluster variation methods of: (a) Interrelation between the crystal structure and superconductivity; (b) Impact of substitution atoms on the electronic subsystem; (c) Influence of photon/electron beams on the critical temperature and crystal structure. The 4th and 5th topics cover theoretical and experimental studies of influence of fluctuations (and stochastic processes in general) on: (a) Phase transitions and critical behavior of polymers in solutions and percolation phenomena; (b) Barkhausen noise emissions in ferromagnets.