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- W4294429786 abstract "We provide strong evidence of the spin-nematic state in a paradigmatic ferro-antiferromagnetic $J_1$--$J_2$ model using analytical and density-matrix renormalization group methods. In zero field, the attraction of spin-flip pairs leads to a first-order transition and no nematic state, while pair-repulsion at larger $J_2$ stabilizes the nematic phase in a narrow region near the pair-condensation field. A devil's staircase of multi-pair condensates is conjectured for weak pair-attraction. A suppression of the spin-flip gap by many-body effects leads to an order-of-magnitude contraction of the nematic phase compared to naive expectations. The proposed phase diagram should be broadly valid." @default.
- W4294429786 created "2022-09-03" @default.
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- W4294429786 date "2022-08-31" @default.
- W4294429786 modified "2023-09-29" @default.
- W4294429786 title "The Elusive Spin Nematic" @default.
- W4294429786 doi "https://doi.org/10.48550/arxiv.2209.00010" @default.
- W4294429786 hasPublicationYear "2022" @default.
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