论文标题
用于将大型可调菌株应用于机械细腻的样品的刚性平台
Rigid platform for applying large tunable strains to mechanically delicate samples
论文作者
论文摘要
对单轴应力的反应已成为电子材料的主要探测。可以使用压电执行器来施加可调的单轴应力，到目前为止，已经开发了两种方法以将其用于执行器。在一个中，执行器沿着自由梁状样品的长度施加力，从而可以达到非常大的应变。另一方面，将样品直接固定在压电执行器上，从而研究了机械细腻的材料。在这里，我们描述了一种将两者合并的方法：将薄样品固定在底物上，然后使用压电执行器单轴线加压。使用这种方法，我们证明了大型弹性应变在机械细腻的样品中的应用：范德华键入的材料FESE，以及用聚焦离子束形成的Ceausb $ _2 $样本。
Response to uniaxial stress has become a major probe of electronic materials. Tuneable uniaxial stress may be applied using piezoelectric actuators, and so far two methods have been developed to couple samples to actuators. In one, actuators apply force along the length of a free, beam-like sample, allowing very large strains to be achieved. In the other, samples are affixed directly to piezoelectric actuators, allowing study of mechanically delicate materials. Here, we describe an approach that merges the two: thin samples are affixed to a substrate, that is then pressurized uniaxially using piezoelectric actuators. Using this approach, we demonstrate application of large elastic strains to mechanically delicate samples: the van der Waals-bonded material FeSe, and a sample of CeAuSb$_2$ that was shaped with a focused ion beam.
