论文标题
温度梯度作为量子磁体中移动自旋动力学探针引起的非肾脏方向性二科动物
Nonreciprocal directional dichroism induced by a temperature gradient as a probe for mobile spin dynamics in quantum magnets
论文作者
论文摘要
量子磁体中的物质的新状态（如量子自旋液体）最近引起了很大的兴趣。尽管存在大量候选材料，但尚无确认的量子自旋液体，这主要是由于缺乏适当的实验探针。例如，诸如中子散射之类的光谱实验从无序诱导的局部模式中获得贡献，而热传输实验则获得了来自声子的贡献。在这里，我们提出了一项热光学实验，该实验直接探测空间中的对称和/或时间反转对称的莫特绝缘子中的移动磁激发：温度梯度诱导的非重点方向性二色性（TNDD）光谱。与传统探针不同，TNDD直接检测到来自声子和局部磁模式的移动磁激发和脱离。
Novel states of matter in quantum magnets like quantum spin liquids attract considerable interest recently. Despite the existence of a plenty of candidate materials, there is no confirmed quantum spin liquid, largely due to the lack of proper experimental probes. For instance, spectrosocopy experiments like neutron scattering receive contributions from disorder-induced local modes, while thermal transport experiments receive contributions from phonons. Here we propose a thermo-optic experiment which directly probes the mobile magnetic excitations in spatial-inversion symmetric and/or time-reversal symmetric Mott insulators: the temperature-gradient-induced nonreciprocal directional dichroism (TNDD) spectroscopy. Unlike traditional probes, TNDD directly detects mobile magnetic excitations and decouples from phonons and local magnetic modes.
