论文标题
旋转nematics符合自旋液体：带有基塔夫相互作用的旋转量子相-1 $ $ 1 $ biinear-biquadratic模型
Spin Nematics Meet Spin Liquids: Exotic Quantum Phases in the Spin-$1$ Bilinear-Biquadratic Model with Kitaev Interactions
论文作者
论文摘要
自旋液体晶体是液晶的磁性类似物，具有液体和固体的特性，其典型的例子是旋转鸟类。自旋命名与自旋液体共享许多特征，它们之间的相互作用是一个有前途的相互作用，但很少探索，可以揭示物质的新阶段。在这里，我们在蜂窝晶格上旋转$ 1 $磁铁的上下文中，通过考虑具有两种偶然性相互作用的模型，偏爱自旋nematic状态和基塔夫（Kitaev）的相互作用，从而支持旋转液体。伴随着这些偶极子和四极矩竞争的地方，我们发现了很多异国情调的阶段，包括具有非零标量旋转手性的多重$ Q $状态；一个准二维共面阶段；扭曲的圆锥形相；和一个非稳态状态，该状态在有限温度下取代手性旋转液体。讨论了这些结果对实验的含义。
Spin liquid crystals are magnetic analogs of liquid crystals, possessing properties of both liquids and solids, a typical example of which are spin nematics. Spin nematics share many features with spin liquids, and the interplay between them is a promising, but little explored, route to uncovering new phases of matter. Here, we address this question in the context of a spin-$1$ magnet on the honeycomb lattice, by considering a model with both biquadratic interactions, favouring spin-nematic states, and Kitaev-like interactions, supporting spin liquids. Accompanying these, where dipole and quadrupole moments compete, we find a plethora of exotic phases, including multiple-$q$ states with nonzero scalar spin chirality; a quasi-one-dimensional coplanar phase; a twisted conical phase; and a noncoplanar order state which gives way to a chiral spin liquid at finite temperature. The implication of these results for experiment is discussed.
