论文标题
连续的铁磁量子相变
Continuous ferromagnetic quantum phase transition on an anisotropic Kondo lattice
论文作者
论文摘要
由于最近在重型费用化合物Cerh $ _6 $ ge $ _4 $中发现的铁磁量子关键性的动机，我们开发了一种无限的预测纠缠式状态的数值算法，用于各向异性的跨磁性型近距离磁场模型，并研究了Vermagnections and verermagnions and verermagnitions and verermantions intermantions and verermantions。各向异性。我们的计算揭示了大型各向异性区域中的连续铁磁量子相变和较小各向异性的一阶量子相变。我们的结果强调了磁各向异性对近野晶格系统中铁磁量子临界的重要性，并为CERH $ _6 $ ge $ _4 $具有Quasi-One-dimensional磁性结构的实验观察提供了可能的解释。我们的工作为未来研究的途径开辟了途径，使用最先进的张量网络方法来研究丰富的Kondo Lattice物理。
Motivated by the recent discovery of ferromagnetic quantum criticality in the heavy fermion compound CeRh$_6$Ge$_4$, we develop a numerical algorithm of infinite projected entangled pair states for the anisotropic ferromagnetic Kondo-Heisenberg model in two dimensions and study the ferromagnetic quantum phase transitions with varying magnetic and hopping anisotropy. Our calculations reveal a continuous ferromagnetic quantum phase transition in the large anisotropic region and first-order quantum phase transitions for smaller anisotropy. Our results highlight the importance of magnetic anisotropy on ferromagnetic quantum criticality in Kondo lattice systems and provide a possible explanation for the experimental observation in CeRh$_6$Ge$_4$ with a quasi-one-dimensional magnetic structure. Our work opens the avenue for future studies of the rich Kondo lattice physics using state-of-the-art tensor network approaches.
