55 citations · 135 across the 8 of their papers we have counts for
8 papers
Ternary eutectic dendrites: Pattern formation and scaling properties
László Rátkai, Attila Szállás, Tamás Pusztai +2
Extending previous work [T. Pusztai, L. Rátkai, A. Szállás, and L. Gránásy, Phys. Rev. E {\bf 87}, 032402 (2013)], we have studied the formation of eutectic dendrites in a model te…
Geometry fluctuations and Casimir effect in a quantum antiferromagnet
Anuradha Jagannathan, Attila Szallas
We show the presence of a Casimir type force between domain walls in a two dimensional Heisenberg antiferromagnet subject to geometrical fluctuations. The type of fluctuations that…
Geometry fluctuations in a two-dimensional quantum antiferromagnet
Anuradha Jagannathan, Benoit Douçot, Attila Szallas +1
The paper considers the effects of random fluctuations of the local spin connectivities (fluctuations of the geometry) on ground state properties of a two-dimensional quantum antif…
A phason disordered two dimensional quantum antiferromagnet
Attila Szallas, Anuradha Jagannathan, Stefan Wessel
We examine a novel type of disorder in quantum antiferromagnets. Our model consists of localized spins with antiferromagnetic exchanges on a bipartite quasiperiodic structure, whic…
Phason Disorder Effects in the Penrose Tiling Antiferromagnet
Attila Szallas, Anuradha Jagannathan
We discuss the ground state of a disordered two dimensional Heisenberg antiferromagnet. The starting structure is taken to be a perfectly deterministic quasiperiodic tiling, and th…
Antiferromagnetism in two-dimensional quasicrystals
Anuradha Jagannathan, Attila Szallas
Quasiperiodic structures possess long range positional order, but are freed of constraints imposed by translational invariance. For spins interacting via Heisenberg couplings, one…