论文标题
朝着手性旋转液体的无定形和多晶路线
Amorphous and polycrystalline routes towards a chiral spin liquid
论文作者
论文摘要
我们表明，手性旋转液体自发地以部分非晶，多晶或离子辐照的kitaev材料出现。在这些系统中，由于具有奇数边缘（$ n_ {odd} $）的非零密度，时间反转对称性被自发损坏。这种机制在与典型的无定形材料和多晶的小$ N_ {ODD} $上打开了一个巨大的间隙，并且可以通过离子辐射诱导。我们发现差距与$ n_ {奇数} $成比例，以$ n_ {odd} \ sim 40 \％$饱和。使用精确的对角度化，我们发现手性自旋液体与海森贝格相互作用大致稳定，与基塔耶夫的蜂窝旋转液体模型一样稳定。我们的结果打开了大量的非结晶系统，可以在没有外部磁场的情况下出现手性自旋液体。
We show that a chiral spin liquid spontaneously emerges in partially amorphous, polycrystalline, or ion-irradiated Kitaev materials. In these systems, time-reversal symmetry is broken spontaneously due to a non-zero density of plaquettes with an odd number of edges, $n_{odd}$. This mechanism opens a sizeable gap, at small $n_{odd}$ compatible with that of typical amorphous materials and polycrystals, and which can alternatively be induced by ion-irradiation. We find that the gap is proportional to $n_{odd}$, saturating at $n_{odd}\sim 40\%$. Using exact diagonalization, we find that the chiral spin liquid is approximately as stable to Heisenberg interactions as Kitaev's honeycomb spin liquid model. Our results open up a significant number of non-crystalline systems where chiral spin liquids can emerge without external magnetic fields.
