61 citations · 130 across the 5 of their papers we have counts for
5 papers
Differences in the quasiparticle dynamics for one-band and three-band cuprate models
Hadi Ebrahimnejad, George A. Sawatzky, Mona Berciu
We study the quasiparticles of the one-band - and --- models using a variational approximation that includes spin fluctuations in the vicinity of the hole. We e…
The dynamics of a doped hole in cuprates is not controlled by spin fluctuations
Hadi Ebrahimnejad, George A. Sawatzky, Mona Berciu
Twenty seven years after the discovery of high-temperature superconductivity \cite{BedMu}, consensus on its theoretical explanation is still absent. To a good extent, this is due t…
Binding carriers to a non-magnetic impurity in a two-dimensional square Ising antiferromagnet
Hadi Ebrahimnejad, Mona Berciu
A hole in a two-dimensional Ising antiferromagnet was believed to be infinitely heavy due to the string of wrongly oriented spins it creates as it moves, which should trap it near…
A perturbational study of the lifetime of a Holstein polaron in the presence of weak disorder
Hadi Ebrahimnejad, Mona Berciu
Using the momentum average (MA) approximation, we find an analytical expression for the disorder-averaged Green's function of a Holstein polaron in a three-dimensional simple cubic…
Trapping of three-dimensional Holstein polarons by various impurities
Hadi Ebrahimnejad, Mona Berciu
We study the bound states of a three-dimensional Holstein polaron near various kinds of single impurities, using the momentum average approximation. We show that the electron-phono…