Abstract Strong electron-phonon interactions are frequently considered the origin of unique electrical and optical properties lead halide perovskites. Electron-phonon induce formation a polaron, which is charge carrier dressed with phonon cloud. The details polaron crucial for transport since leads to larger effective mass carrier. Several mechanisms have been proposed regarding physics in pero...

We present a model study of the dynamic properties of a polaron in an organic ferromagnetic polymer by focusing on the spin correlation between the polymer backbone and the side radicals. The simulations are performed by using a tight-binding description coupled with a nonadiabatic dynamics method. We find that, in the presence of an external electric field, the polarons with both up and down s...

This thesis presents experiments investigating the phase diagram of ultracold atomic Fermi gases using radio-frequency spectroscopy. The tunability of many experimental parameters including the temperature, the interparticle interaction strength and the relative population of different fermions allows to access very different physical regimes. Radio-frequency spectroscopy has been developed int...

We study here polaron (soliton) states of electrons or holes in a model describing carbon-type nanotubes. In the Hamiltonian of the system we take into account the electron-phonon interaction that arises from the deformation dependencies of both the on-site and the hopping interaction energies. Using an adiabatic approximation, we derive the equations for self-trapped electron states in zigzag ...

Magnetic monopoles have been realized as emergent quasiparticles in both condensed matter and ultracold atomic platforms, with growing interest the coupling effects between monopole different magnetic quasiparticles. In this work, interaction magnons are investigated for an pseudospin chain. We reveal that can excite a virtual magnon cloud paramagnetic chain, thereby giving rise to unconvention...

An impurity atom immersed in an ultracold atomic Fermi gas can form a quasiparticle, so-called polaron, due to impurity-fermion interaction. We consider three-dimensional homogeneous dipolar as medium, where the interatomic dipole-dipole interaction (DDI) makes surface deformed into spheroidal shape, and, using Chevy-type variational method, investigate ground-state properties of polaron: effec...

Small polaron carrier density in epitaxial, doped CeO(2) thin films under low oxygen partial pressure was determined from electrochemically-measured capacitance after accounting for interfacial effects and shown to agree well with bulk values.

The carrier-density dependence of the photoemission spectrum of the Holstein many-polaron model is studied using cluster perturbation theory combined with an improved cluster diagonalization by Chebychev expansion.