10 citations · 13 across the 2 of their papers we have counts for
5 papers · 1 filter
Spin polaron in the J1-J2 Heisenberg model
I. J. Hamad, A. E. Trumper, A. E. Feiguin +1
We have studied the validity of the spin polaron picture in the frustrated J1-J2 Heisenberg model. For this purpose, we have computed the hole spectral functions for the Neel, coll…
Spectroscopic fingerprints of the frustrated magnetic order in Li2VOSiO4: a t-J model study
I. J. Hamad, A. E. Trumper, L. O. Manuel
We have analyzed theoretically the photoemission spectra of the insulating compound Li2VOSiO4.Recently, this compound has been proposed as the first experimental realization of the…
1/T_1 nuclear relaxation time of κ-(BEDT-TTF)_ 2 Cu [N(CN)_2] Cl : effects of magnetic frustration
I. J. Hamad, A. E. Trumper, P. Wzietek +2
We study the role played by the magnetic frustration in the antiferromagnetic phase of the organic salt κ-(BEDT-TTF)_ 2 Cu [N(CN)_2] Cl. Using the spatially anisotropic triangular…
Quasiparticle excitations in frustrated antiferromagnets
A. E. Trumper, C. J. Gazza, L. O. Manuel
We have computed the quasiparticle wave function corresponding to a hole injected in a triangular antiferromagnet. We have taken into account multi-magnon contributions within the…
Quasiparticle vanishing driven by geometrical frustration
A. E. Trumper, C. J. Gazza, L. O. Manuel
We investigate the single hole dynamics in the triangular t-J model. We study the structure of the hole spectral function, assuming the existence of a 120 magnetic Neel order. With…