Quantum dark matter detection through the intersection of particle physics, chemistry and solid state physics

粒子理论小组（包括PI Melia）负责理论计算，从100多个可能的选择中确定特定的单分子磁体，这些磁体非常适合暗物质探测。我们确定了许多可能性，重要的是，我们确定了一个关键参数，作为能量阈值的指标。这个参数-一个常数，决定了最快的磁弛豫时间-是有据可查的合成单分子磁铁在文献中。因此，我们能够以10个晶体为目标，选择性能，使能量阈值将坐在一个滑动的尺度上，着眼于制造未来潜在的原型粒子探测器。化学组（包括Co-I福井）负责合成单分子磁体。该小组选择了专注于自旋弛豫时间的单分子磁体，并合成了含有锰离子的单分子磁体。凝聚态组（包括Co-I Mizukami）负责对化学组合成的单分子磁体晶体进行热容测量。提供了几种锰基化合物单晶样品，测定了磁场中比热随温度的变化关系。

The particle theory group (including PI Melia) is responsible for the theoretical calculations that identify particular single molecule magnets out of the 100s of possible choices that would be well suited to dark matter detection. We identified a number of possibilities, and importantly we identified a key parameter that acts as an indicator for the energy threshold. This parameter - a constant that determines the fastest possible magnetic relaxation time - is well documented for the synthesized single molecule magnets in the literature. We therefore were able to target of order ten crystals, with the properties chosen so that the energy threshold would sit on a sliding scale, with an eye to making future potential prototype particle detectors.The chemistry group (including Co-I Fukui) is responsible for the synthesis of single molecule magnets. The group selected single-molecule magnets focusing on the spin relaxation time, and synthesized single-molecule magnets containing manganese ions. As a result, single crystals of two types of single-molecule magnets were successfully prepared.The condensed matter group (including Co-I Mizukami) is responsible for the heat capacity measurement on crystals of single molecule magnets synthesized by the chemistry group. They have been provided several single-crystalline samples of Mn-based compounds, and determined the temperature dependence of specific heat in magnetic fields.