Random-Singlet Phase in Disordered Two-Dimensional Quantum Magnets

Random-Singlet Phase in Disordered Two-Dimensional Quantum Magnets

We study the effects of disorder (quenched randomness) in a two-dimensional square-lattice S=1/2 quantum-spin system, the J-Q model with a multispin interaction Q supplementing the Heisenberg exchange J. In the absence of disorder, the system hosts antiferromagnetic (AFM) and columnar valence-bond-s...

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Bibliographic Details
Main Authors:	Lu Liu, Hui Shao, Yu-Cheng Lin, Wenan Guo, Anders W. Sandvik
Format:	Article
Language:	English
Published:	American Physical Society 2018-12-01
Series:	Physical Review X
Online Access:	http://doi.org/10.1103/PhysRevX.8.041040

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