论文标题
多个库仑相具有温度可调节冰规则的pyrochlore自旋跨界材料
Multiple Coulomb phases with temperature tunable ice rules in pyrochlore spin crossover materials
论文作者
论文摘要
自旋跨界分子具有两个可访问的状态：高自旋（HS）和低自旋（LS）。我们表明，在Pyrochlore晶格上，SCO分子之间的弹性相互作用会导致三个自旋状态冰阶段。每个都是``库仑阶段''，其中局部冰规可以映射到无分流量规场，而低能激励在LS和HS状态之间带有旋转分数化的旋转分数。自旋跨界材料的独特性质使温度可以更改冰规则，从而可以直接进入水或自旋冰中尚未观察到的库仑阶段。
Spin crossover molecules have two accessible states: high spin (HS) and low spin (LS). We show that, on the pyrochlore lattice, elastic interactions between SCO molecules can give rise to three spin-state ice phases. Each is a ``Coulomb phase'' where a local ice-rule can be mapped to a divergence free gauge field and the low energy excitations carry a spin fractionalized midway between the LS and HS states. The unique nature of spin crossover materials allows temperature to change the ice rules allowing straightforward access to Coulomb phases not yet observed in water or spin ices.
