334 citations · 654 across the 19 of their papers we have counts for
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Superfluid-spiral state of quantum ferrimagnets in magnetic field
M. Abolfath, A. Langari
We study the phase diagram of one-dimensional quantum ferrimagnets by using a numerical exact diagonalization of a finite size system along with a field-theoretical non-linear …
Massive skyrmions in quantum Hall ferromagnets
M. Abolfath, Kieran Mullen, H. T. C. Stoof
We apply the theory of elasticity to study the effects of skyrmion mass on lattice dynamics in quantum Hall systems. We find that massive Skyrme lattices behave like a Wigner cryst…
Phase diagram of ferrimagnetic ladders with bond-alternation
A. Langari, M. Abolfath, M. A. Martin-Delgado
We study the phase diagram of a 2-leg bond-alternation spin-(1/2, 1) ladder for two different configurations using a quantum renormalization group approach. Although d-dimensional…
Finite Temperature Behavior of the Quantum Hall Effect in Bilayer Electron Systems
M. Abolfath, Ramin Golestanian, T. Jungwirth
An effective field theoretic description of bilayer electron systems stabilized by Coulomb repulsion in a single wide quantum well is examined using renormalization group tec…
Quantum Ferrimagnets
M. Abolfath, H. Hamidian, A. Langari
We study quantum ferrimagnets in one, two, and three dimensions by using a variety of methods and approximations. These include: (i) a treatment based on the spin coherent state pa…
Field Theory of Skyrme Lattices in Quantum Hall Ferromagnets
M. Abolfath, M. R. Ejtehadi
We report the application of the nonlinear model to study the multi-skyrmion problem in the quantum Hall ferromagnet system. We make use of a first-principle calculation to der…