刚性平台，用于将大的可调应变施加到机械精密样品
Rigid platform for applying large tunable strains to mechanically delicate samples
摘要：
对单轴应力的响应已成为电子材料研究的一个重要课题。可调谐的单轴应力可以使用压电致动器施加，并且到目前为止已经开发了两种方法来将样品耦合到致动器。在一种情况下，致动器沿着自由的梁状样品的长度施加力，允许实现非常大的应变。在另一种情况下，样品直接固定在压电致动器上，从而可以研究机械上脆弱的材料。在这里，我们描述了一种方法，合并了这两个：薄样品贴在基板上，然后使用压电致动器单轴加压。使用这种方法，我们证明了大的弹性应变的应用程序，以机械微妙的样品：范德华键合的材料FeSe，和样品的CeAuSb $_2$，是用聚焦离子束成形。
英文摘要：
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.
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