207 citations · 2.5k across the 69 of their papers we have counts for
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cond-mat.str-el2008★ 66 cited
Quantum Phase Diagram and Excitations for the One-Dimensional S=1 Heisenberg Antiferromagnet with Single-Ion Anisotropy
A. Fabricio Albuquerque, Chris J. Hamer, Jaan Oitmaa
We investigate the zero-temperature phase diagram of the one-dimensional S=1 Heisenberg antiferromagnet with single-ion anisotropy. By employing high-order series expansions and qu…
cond-mat.str-el2008★ 32 cited
Quantum Phase Transition in a Heisenberg Antiferromagnet on a Square Lattice with Strong Plaquette Interactions
A. Fabricio Albuquerque, Matthias Troyer, Jaan Oitmaa
We present numerical results for an Heisenberg antiferromagnet on a inhomogeneous square lattice with tunable interaction between spins belonging to different plaquettes. E…