Where is the spin liquid in maple-leaf quantum magnet?
Fuente:
arXiv
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866917569833730048 |
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| author | Ghosh, Pratyay |
| author_facet | Ghosh, Pratyay |
| contents | We investigate the possibility of exotic phenomena, viz. quantum spin liquid (QSL) or deconfined quantum critical point (DQCP), in the spin-$\frac{1}{2}$ Heisenberg model on the maple-leaf lattice, a geometrically frustrated system formed by hexagons (coupling $J_h$), triangles (coupling $J_t$), and dimers (coupling $J_d$). We identify one promising region, given by $J_h > 0$ and $J_t, J_d < 0$, for hosting enticing physics. In this region, the quantum phase diagram of the system exhibits an interplay between Néel order and a gapped dimerized singlet phase. This arrangement holds the possibility of harboring a QSL and a DQCP. Using bond-operator mean-field theory and density matrix renormalization group calculations, we delve into this uncharted territory, revealing tantalizing evidence of the existence of a QSL phase and highlighting its potential as a platform for DQCP. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_09422 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Where is the spin liquid in maple-leaf quantum magnet? Ghosh, Pratyay Strongly Correlated Electrons We investigate the possibility of exotic phenomena, viz. quantum spin liquid (QSL) or deconfined quantum critical point (DQCP), in the spin-$\frac{1}{2}$ Heisenberg model on the maple-leaf lattice, a geometrically frustrated system formed by hexagons (coupling $J_h$), triangles (coupling $J_t$), and dimers (coupling $J_d$). We identify one promising region, given by $J_h > 0$ and $J_t, J_d < 0$, for hosting enticing physics. In this region, the quantum phase diagram of the system exhibits an interplay between Néel order and a gapped dimerized singlet phase. This arrangement holds the possibility of harboring a QSL and a DQCP. Using bond-operator mean-field theory and density matrix renormalization group calculations, we delve into this uncharted territory, revealing tantalizing evidence of the existence of a QSL phase and highlighting its potential as a platform for DQCP. |
| title | Where is the spin liquid in maple-leaf quantum magnet? |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2401.09422 |