1 citations · 1 across the 1 of their papers we have counts for
7 papers
Theory of Transport Phenomena in Coherent Quantum Hall Bilayers
I. Sodemann, H. Chen, A. H. MacDonald
We argue that all anomalous transport properties of coherent quantum quantum Hall bilayers can be understood in terms of a mean-field transport theory in which the condensate phase…
Lattice Pseudospin Model for Quantum Hall Bilayers
A. A. Burkov, A. H. MacDonald
We present a new theoretical approach to the study of quantum Hall bilayer that is based on a systematic mapping of the microscopic Hamiltonian to an anisotropic SU(4) spin m…
Theory of Ferromagnetism in Doped Excitonic Condensates
E. Bascones, A. A. Burkov, A. H. MacDonald
Nesting in a semimetal can lead to an excitonic insulator state with spontaneous coherence between conduction and valence bands and a gap for charged excitations. In this paper we…
Noncollinear Ferromagnetism in (III,Mn)V Semiconductors
John Schliemann, A. H. MacDonald
We investigate the stability of the collinear ferromagnetic state in kinetic exchange models for (III,Mn)V semiconductors with randomly distributed Mn ions >. Our results suggest t…
Phase transition and spin-wave dispersion in quantum Hall bilayers at filling factor nu=1
Anton Burkov, John Schliemann, A. H. MacDonald +1
We present an effective Hamiltonian for a bilayer quantum Hall system at filling factor neglecting charge fluctuations. Our model is formulated in terms of spin and pseudospi…
Monte Carlo Study of Ferromagnetism in (III,Mn)V Semiconductors
John Schliemann, Jürgen König, A. H. MacDonald
We report on Monte Carlo studies of the kinetic exchange model for (III,Mn)V ferromagnetic semiconductors in which S=5/2 local moments, representing Mn^{2+} ions, are exchange coup…