engleski

Complex and non-linear dynamics of charge and spin structures

Strong Coulomb interactions are essential for collective electronic states in synthetic conductors and superconductors, e.g. in organic (molecular) as well as in transition metal oxides, which are established in the wide temperature range from 250 K down to lowest attainable temperatures. These states, like charge and spin-density waves, charge orderings of various types and orbital orderings, show rich range of nonlinear properties and complex dynamics. In this lecture, I will describe the conventional spin density wave phase stabilized in the quasi-one-dimensional organic superconductor [1] and the exotic charge density wave phase formed in the spin ladders of quasi-one-dimensional cuprates [2] ; both of them showing complex and nonlinear dynamics in their response to the applied electric fields. Publications 1. S.Tomić et al., Phys.Rev.Lett. {;\bf 62}; (1989) 462. ; P.Zornoza et al., Eur. Phys. J. B {;\bf 46};, 223 (2005). 2. T.Vuletić et al., Phys.Rev.Lett. {;\bf 90}; (2003) 257002. and Physics Reports {;\bf 428};, 169 (2006).

density waves; superconductivity; strongly correlated systems; reduced dimensionality

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