Collective state of charge density waves (CDW) occurs in systems with quasi low-dimensional electronic structure. Due to the inherently multicomponent order parameter CDW is one of the main representatives of strongly correlated electronic systems for the investigation of cooperative phenomena, particularly between the lattice and the electronic subsystem. Unusual properties of CDW systems such as nonlinear transport, giant dielectric constant or torsion in electric field are generally well investigated and understood in bulk samples.

However, at very small scales and very short times new phenomena are observed, such as negative differential resistance on nanometer scales or nonthermal melting of CDW at the times below picosecond. Rapid development of new techniques for direct observation of structural changes with
femtosecond resolution demands also adequate samples.

The intent of the project is to establish a wide cooperation of groups involved in either investigation of the properties of CDW systems, synthesis of CDW samples, deposition of thin films, femtosecond spectroscopy measurements or other methods for the characterisation and modification of thin films. Such cooperation would permit the investigation of the ultra fast CDW dynamics as well as other CDW properties in the spatially reduced geometries characteristic for planar technologies. Moreover, the collaboration of international and national groups which use similar methods (femtosecond spectroscopy, pulsed laser deposition) would aim at the transfer of specific knowledge towards national groups.