We report on the development of a sensitive dilatometer based upon a AFM piezocantilever. This dilatometer has been tested at temperatures down to 25 mK and in magnetic fields up to 16 T. The layered heavy fermion superconductor CeCoIn5 and its non-magnetic analog LaRhIn5 have been measured to demonstrate its use in detecting phase transitions and quantum oscillations. In addition, using this dilatometer, a simultaneous multi-axis dilation measurement has been done. This compact dilatometer has many advantages such as its ability to measure very small samples with lengths at sub-mm levels, low temperature and field dependence, ability to rotate, and works well irrespective of being in a changing liquid or gas environment (i.e. within a flow cryostat or mixing chamber).
@article{arxiv.1309.6675,
title = {Miniature Dilatometer Based upon an AFM Piezocantilever},
author = {Liran Wang and George M. Schmiedeshoff and David Earl Graf and Ju-Hyun Park and Timothy P. Murphy and Stanley W. Tozer and Eric C. Palm},
journal= {arXiv preprint arXiv:1309.6675},
year = {2019}
}