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                                                       ECE 
                                                                                                     ECE  5390 Final Project
                                                                - First Report
                                                                                                                          Okan Koksal
        Koksal
                                                        Charge Density Waves, their Transport in Layered Materials, and Potential Applications

     Charge Density Waves (CDWs) occur due to a reconfiguration of both the electronic and lattice structures as a result of finite interaction the interactions of the electrons with both themselves, and the lattice. Given that a certain amount of coupling  between electrons and phonons exists, the phonon dispersion will undergo a strong change at lower temperatures. This causes  the
 phonon mode to form a standing wave, (that is to say, a certain nonzero wavevector of energy zero.) Consequently, the electron density, which is coupled to the phonon density also undergoes oscillations. The CDW state occurs when such a reconfiguration is energetically preferable.