Search for dissertations about: "Su-Schrieffer-Heeger SSH model"

Found 2 swedish dissertations containing the words Su-Schrieffer-Heeger SSH model.

2. 1. Electron-Lattice Dynamics in pi-Conjugated Systems

   Author : Magnus Hultell (Andersson); Sven Stafström; Alexander Onipko; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polaron dynamics; Exciton dynamics; pi-conjugated systems; Su-Schrieffer-Heeger SSH model; Adiabaticity; Charge carrier transport; Organic electronics.; Computational physics; Beräkningsfysik;

   Abstract : In this thesis we explore in particular the dynamics of a special type of quasi-particle in pi-conjugated materials termed polaron, the origin of which is intimately related to the strong interactions between the electronic and the vibrational degrees of freedom within these systems. In order to conduct such studies with the particular focus of each appended paper, we simultaneously solve the time-dependent Schrödinger equation and the lattice equation of motion with a three-dimensional extension of the famous Su-Schrieffer-Heeger (SSH) model Hamiltonian. READ MORE

4. 2. Electron-lattice dynamics in π-conjugated systems

   Author : Magnus Hultell (Andersson); Sven Stafström; Alessandro Troisi; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; charge transport; electron-lattice dynamics; polaron; adiabatic transport; electron localization; internal conversion; Computational physics; Beräkningsfysik;

   Abstract : The work presented in this thesis concerns the dynamics in π-conjugated hydrocarbon systems. Due to the molecular bonding structure of these systems there exists a coupling between the electronic system and the phonons of the lattice. READ MORE