We present the design and construction of an NMR probe to investigate single crystals under strain at cryogenic temperatures. The probe head incorporates a piezoelectric-based apparatus from Razorbill Instruments that enables both compressive and tensile strain tuning up to strain values on the order of 0.3% with a precision of 0.001%. 75As NMR in BaFe2As2 reveals large changes to the electric field gradient, and indicates that the strain is homogeneous to within 16% over the volume of the NMR coil.
@article{arxiv.1708.08501,
title = {Nuclear Magnetic Resonance Probe Head Design for Precision Strain Control},
author = {T. Kissikov and R. Sarkar and B. T. Bush and M. Lawson and P. C. Canfield and N. J. Curro},
journal= {arXiv preprint arXiv:1708.08501},
year = {2017}
}