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We present liquid crystal elastomer (LCE) nanocomposites containing superparamagnetic nanoparticles that perform local heat dissipation upon irradiation with electromagnetic fields. A fast local temperature rise is observed that leads to a distinct contraction at the nematic–isotropic transition temperature of the elastomer. The materials exhibit contractions up to 27% of the original length with short response times. We found the heat production rate and the heat transfer coefficient the parameters that determine the maximum contraction rate.
Kaiser et al. (Wed,) studied this question.