104 citations · 702 across the 33 of their papers we have counts for
33 papers
Ring-like shaped charge modulations in the t-J model with long-range Coulomb interaction
Matías Bejas, Roland Zeyher, Andrés Greco
The study of the charge excitations in cuprates is presently an interesting topic because of the development of new and precise x-ray experiments. Based on a large- formulation…
Competition between spin-induced charge instabilities in underdoped cuprates
Roland Zeyher, Andres Greco
We study the static charge correlation function in an one-band model on a square lattice. The Hamiltonian consist of effective hoppings of the electrons between the lattice sites a…
Isotope effect on the superconducting critical temperature of cuprates in the presence of charge order
Andrés Greco, Roland Zeyher
Using the large- limit of the - model and allowing also for phonons and the electron-phonon interaction we study the isotope effect for coupling constants appropriate…
Spin nematic fluctuations near a spin-density-wave phase
Hiroyuki Yamase, Roland Zeyher
We study an interacting electronic system exhibiting a spin nematic instability. Using a phenomenological form for the spin fluctuation spectrum near the spin-density-wave (SDW) ph…
Symmetry classification of bond order parameters in cuprates
Roland Zeyher
We study bond-order parameters for generalized - models on a square lattice. Using the plane-wave limit the considered order parameters form basis functions for irreducible r…
Electronic Raman scattering from orbital nematic fluctuations
Hiroyuki Yamase, Roland Zeyher
We compute Raman scattering intensities via the lowest-order coupling to the bosonic propagator associated with orbital nematic fluctuations in a minimal model for iron pnictides.…