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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2018-12-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.8.041040 |