83 citations · 219 across the 9 of their papers we have counts for
3 papers · 1 filter
Dissipative dynamics of topological defects in frustrated Heisenberg spin systems
V. Juricic, L. Benfatto, A. O. Caldeira +1
We study the dynamics of topological defects of a frustrated spin system displaying spiral order. As a starting point we consider the SO(3) nonlinear sigma model to describe long-w…
Spin-excitations of the quantum Hall ferromagnet of composite fermions
R. L. Doretto, M. O. Goerbig, P. Lederer +2
The spin-excitations of a fractional quantum Hall system are evaluated within a bosonization approach. In a first step, we generalize Murthy and Shankar's Hamiltonian theory of the…
On the self-similarity in quantum Hall systems
M. O. Goerbig, P. Lederer, C. Morais Smith
The Hall-resistance curve of a two-dimensional electron system in the presence of a strong perpendicular magnetic field is an example of self-similarity. It reveals plateaus at low…