64 citations · 253 across the 30 of their papers we have counts for
30 papers
Structural transition, spontaneous formation of strong singlet dimers and metamagnetism in magnetoelastic spin chains
C. J. Gazza, A. A. Aligia, A. O. Dobry +2
We study a one-dimensional antiferromagnetic-elastic model with magnetic ions having spin . By extensive DMRG computations and complementary analytical methods, we uncover a…
Repulsion driven metallic phase in the ground state of the half-filled ionic Hubbard chain
Gerardo L. Rossini, George I. Japaridze
An unusual metallic phase is proven to develop in the one dimensional ionic Hubbard model, at half-filling and zero magnetization, at intermediate electron-electron repulsion w…
Double frustration and magneto-electro-elastic excitations in collinear multiferroic materials
D. C. Cabra, A. O. Dobry, C. J. Gazza +1
We discuss a model scenario for multiferroic systems of type II (collinear spins) where the electric dipolar order competes with a frustrated magnetic order in determining the elas…
Topological solitons and bulk polarization switch in collinear type II multiferroics
D. C. Cabra, A. O. Dobry, C. J. Gazza +1
We introduce a microscopic model for collinear multiferroics capable to reproduce, as a consequence of magnetic frustration and easy-axis anisotropy, the so-called "uudd" (or antip…
Long range alternating spin current order in a quantum wire with modulated spin-orbit interactions
G. L. Rossini, D. C. Cabra, G. I. Japaridze
A key concept in the emerging field of spintronics is the electric field control of spin precession via the effective magnetic field generated by the Rashba spin orbit interaction…
Microscopic model for magneto-electric coupling through lattice distortions
D. C. Cabra, A. O. Dobry, C. J. Gazza +1
We propose a microscopic magneto-electric model in which the coupling between spins and electric dipoles is mediated by lattice distortions. The magnetic sector is described by a s…