论文标题
压电驱动的单轴压力电池用于若子自旋松弛和中子散射实验
Piezoelectric-driven uniaxial pressure cell for muon spin relaxation and neutron scattering experiments
论文作者
论文摘要
我们提出了一个压电驱动的单轴压力电池，该单轴压力电池可针对MUON自旋松弛和中子散射实验进行了优化，并且在包括低温温度在内的较宽温度范围内可以操作。为了适应这些测量技术所需的大型样品，该单元设计为产生高达1000 N的力，并最大程度地减少背景信号，以保持样品周围的空间尽可能开放。我们在这里证明，通过将板状样品带有环氧树脂，可以在5 mm3的活动体积中实现超过1 GPA的单轴应力。我们表明，对于实际操作，重要的是监视应用到样品的力和位移。同样，由于时间在设施实验中至关重要，因此将样品安装在可迅速交换的可拆卸持有者中。压电执行器同样包含在可交换的墨盒中。
We present a piezoelectric-driven uniaxial pressure cell that is optimized for muon spin relaxation and neutron scattering experiments, and that is operable over a wide temperature range including cryogenic temperatures. To accommodate the large samples required for these measurement techniques, the cell is designed to generate forces up to 1000 N, and to minimize the background signal the space around the sample is kept as open as possible. We demonstrate here that by mounting plate-like samples with epoxy, a uniaxial stress exceeding 1 GPa can be achieved in an active volume of 5 mm3. We show that for practical operation it is important to monitor both the force and displacement applied to the sample. Also, because time is critical during facility experiments, samples are mounted in detachable holders that can be rapidly exchanged. The piezoelectric actuators are likewise contained in an exchangeable cartridge.
