Rigid platform for applying large tunable strains to mechanically delicate samples

Joonbum Park, Jack M. Bartlett, Hilary M.L. Noad, Alexander L. Stern, Mark E. Barber, Markus König, Suguru Hosoi, Takasada Shibauchi, Andrew P. Mackenzie, Alexander Steppke, Clifford W. Hicks*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Response to uniaxial stress has become a major probe of electronic materials. Tunable 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 the study of mechanically delicate materials. Here, we describe an approach that merges the two: thin samples are affixed to a substrate, which is then pressurized uniaxially using piezoelectric actuators. Using this approach, we demonstrate the application of large elastic strains to mechanically delicate samples: the van der Waals-bonded material FeSe and a sample of CeAuSb2 that was shaped with a focused ion beam.
Original languageEnglish
Article number083902
Number of pages10
JournalReview of Scientific Instruments
Volume91
Issue number8
DOIs
Publication statusPublished - 3 Aug 2020

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