Piezoelectric-based apparatus for strain tuning
  We report the design and construction of piezoelectric-based apparatus for applying continuously tuneable compressive and tensile strains to test samples. It can be used across a wide temperature range, including cryogenic temperatures. The achievable strain is large, so far up to 0.23% at cryogenic temperatures. The apparatus is compact and compatible with a wide variety of experimental probes. In addition, we present a method for mounting high-aspect-ratio samples in order to achieve high strain homogeneity. 
Clifford W. Hicks, Mark E. Barber, Stephen D. Edkins, Daniel O.   Brodsky, Andrew P. Mackenzie
cond-mat.mtrl-sci