论文标题
野外诱导的Kitaev多极液体中的自旋轨道耦合$ d^{2} $ honeycomb mott绝缘子
Field-induced Kitaev multipolar liquid in spin-orbit coupled $d^{2}$ honeycomb Mott insulators
论文作者
论文摘要
Kitaev模型的特征是莫特绝缘子中的自旋轨道纠缠偶极矩之间的键相互作用，为量子自旋液体提供了一种新方法。由$ 5D^2 $ mott绝缘子中的四极矩之间的另一种债券依赖性相互作用的动机，我们提供了一条微观途径，以揭示Kitaev多极液体，以携带多重矩的非kramers Doublets中的分数化激发。关键成分是磁场，该磁场允许通过与激发的三胞胎状态混合，从而实现键 - 肛门型四极杆 - octupole的相互作用。还讨论了实现这一阶段在真实材料中的签名的条件。
The Kitaev model, characterized by bond-dependent Ising spin interactions among spin-orbit entangled dipole moments in Mott insulators, offered a new approach to quantum spin liquids. Motivated by another type of bond-dependent interaction among quadrupole moments in $5d^2$ Mott insulators, we provide a microscopic route to uncover the Kitaev multipolar liquid, featuring fractionalized excitations out of non-Kramers doublets carrying multipole moments. The key ingredient is the magnetic field that allows for bond-anisotropic quadrupole-octupole interactions via mixing with the excited triplet states. The conditions to realize signatures of this phase in real materials are also discussed.
