Thermodynamic signature of SU(4) spin-orbital liquid and symmetry fractionalization from Lieb-Schultz-Mattis theorem
Thermodynamic signature of SU(4) spin-orbital liquid and symmetry fractionalization from Lieb-Schultz-Mattis theorem
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SU(4) 自旋轨道液体的热力学特征和 Lieb-Schultz-Mattis 定理的对称分式
DOI:
10.1103/physrevb.105.l201115
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发表时间:
2022
影响因子:
3.7
通讯作者:
Fujimoto Satoshi
中科院分区:
文献类型:
--
作者:
Yamada Masahiko G.;Fujimoto Satoshi
TheHeisenberg model on a honeycomb lattice is expected to host a quantum spin-orbital liquid at low temperature with a surprising candidate material,. We employed the canonical thermal pure quantum state method to investigate the finite-temperature phase of this model. Exploiting the full symmetry of, calculation up to a 24-site cluster, which is equivalent to 48 sites in the spin-language, is possible. This state-of-the-art computation with large-scale parallelization enables us to capture the thermodynamic properties of theHeisenberg model on a honeycomb lattice. In particular, the specific heat shows a characteristic peak-and-shoulder structure, which should be related to the nature of the low-temperature quantum spin-orbital liquid phase. We also discuss what can be concluded from the assumption that the ground state is gapped and symmetric in view of the generalized Lieb-Schultz-Mattis theorem.
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