"Electronic transport as a tool to investigate the microscopic structure of a
density-wave state"
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The electronic transport is very sensitive to the
microscopic structure of the density-wave state and may serve as a 
powerful tool for its investigation. In my talk I present several
examples of how electronic transport reveals the microscopic structure
of the DW state. In some cases the theory of these effects is evident;
sometimes they are less trivial, being a long-standing puzzle.
After a brief review I will talk about two recent examples of an
unusual influence of a density wave on the electronic transport: (i)
Spontaneous breaking of isotropy observed in the in-plane conductivity
of rare-earth tritellurides, and (ii) the phase inversion of the
Shubnikov-de Haas oscillations after passing a transition to a 
density-wave state observed in organic metals.