A thermomechanical coupling in cholesteric liquid crystals: Unidirectional rotation of double-twist cylinders driven by heat fluxShinji Bono, Yuji Maruyama, Katsu Nishiyama and Yuka TabeEur. Phys. J. E, 42 8 (2019) 99DOI: https://doi.org/10.1140/epje/i2019-11867-x