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cond-mat.str-el2018
Random-Singlet Phase in Disordered Two-Dimensional Quantum Magnets
Lu Liu, Hui Shao, Yu-Cheng Lin +2
We study effects of disorder (randomness) in a 2D square-lattice quantum spin system, the - model with a 6-spin interaction supplementing the Heisenberg exchange…
cond-mat.str-el2018
Anomalous quantum-critical scaling corrections in two-dimensional antiferromagnets
Nvsen Ma, Phillip Weinberg, Hui Shao +3
We study the Néel-paramagnetic quantum phase transition in two-dimensional dimerized Heisenberg antiferromagnets using finite-size scaling of quantum Monte Carlo data. We r…