83 citations · 219 across the 9 of their papers we have counts for
12 papers
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…
Competition between quantum-liquid and electron-solid phases in intermediate Landau levels
M. O. Goerbig, P. Lederer, C. Morais Smith
On the basis of energy calculations we investigate the competition between quantum-liquid and electron-solid phases in the Landau levels n=1,2, and 3 as a function of their partial…
Second Generation of Composite Fermions in the Hamiltonian Theory
M. O. Goerbig, P. Lederer, C. Morais Smith
In the framework of a recently developed model of interacting composite fermions restricted to a single level, we calculate the activation gaps of a second generation of spin-polar…
Microscopic Theory of the Reentrant IQHE in the First and Second Excited LLs
M. O. Goerbig, P. Lederer, C. Morais Smith
We present a microscopic theory for the recently observed reentrant integral quantum Hall effect in the n=1 and n=2 Landau levels. Our energy investigations indicate an alternating…