%0 Journal Article %1 PhysRevB.109.184422 %A Beck, Jonas %A Bodky, Jonathan %A Motruk, Johannes %A Müller, Tobias %A Thomale, Ronny %A Ghosh, Pratyay %D 2024 %I American Physical Society %J Phys. Rev. B %K b %N 18 %P 184422 %R 10.1103/PhysRevB.109.184422 %T Phase diagram of the J-J$_d$ Heisenberg model on the maple leaf lattice: Neural networks and density matrix renormalization group %U https://link.aps.org/doi/10.1103/PhysRevB.109.184422 %V 109 %X We microscopically analyze the nearest neighbor Heisenberg model on the maple-leaf lattice through neural quantum states (NQS) and infinite density matrix renormalization group (iDMRG). Embarking to parameter regimes beyond the exact dimer singlet ground state with a dimer bond spin exchange coupling Jd varied against the exchange strength J of all other bonds, iDMRG (NQS) finds a dimer state paramagnetic phase for Jd/J>1.464 (Jd/J>1.39) and a canted 120∘ magnetic order for Jd/J<1.419 (Jd/J<1.23). Assessing training convergence inaccuracies of NQS and the influence of finite cylindric circumference for iDMRG, we discuss the possible existence of an intermediate phase between magnet and dimer paramagnet.

@article{PhysRevB.109.184422, abstract = {We microscopically analyze the nearest neighbor Heisenberg model on the maple-leaf lattice through neural quantum states (NQS) and infinite density matrix renormalization group (iDMRG). Embarking to parameter regimes beyond the exact dimer singlet ground state with a dimer bond spin exchange coupling Jd varied against the exchange strength J of all other bonds, iDMRG (NQS) finds a dimer state paramagnetic phase for Jd/J>1.464 (Jd/J>1.39) and a canted 120∘ magnetic order for Jd/J<1.419 (Jd/J<1.23). Assessing training convergence inaccuracies of NQS and the influence of finite cylindric circumference for iDMRG, we discuss the possible existence of an intermediate phase between magnet and dimer paramagnet. }, added-at = {2024-06-12T11:11:34.000+0200}, author = {Beck, Jonas and Bodky, Jonathan and Motruk, Johannes and M\"uller, Tobias and Thomale, Ronny and Ghosh, Pratyay}, biburl = {https://www.bibsonomy.org/bibtex/25569d8400fa5277b1866170d83cc4039/ctqmat}, day = 10, doi = {10.1103/PhysRevB.109.184422}, interhash = {fd58667c53952f240a55cbd803436f61}, intrahash = {5569d8400fa5277b1866170d83cc4039}, journal = {Phys. Rev. B}, keywords = {b}, month = {05}, number = 18, numpages = {10}, pages = 184422, publisher = {American Physical Society}, timestamp = {2024-06-12T15:55:01.000+0200}, title = {Phase diagram of the J-J$_{\mathbf{d}}$ Heisenberg model on the maple leaf lattice: Neural networks and density matrix renormalization group}, url = {https://link.aps.org/doi/10.1103/PhysRevB.109.184422}, volume = 109, year = 2024 }