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Mikroelektromechanische Systeme In der Zuschrift auf S. 8186 beschreiben G. Molnár, A. Bousseksou et al. ein mikroelektromechanisches Element mit einem Spin‐Crossover‐Eisenkomplex als Aktuator. Umschalten der Eisenionen zwischen Low‐ und High‐Spin bewirkt das reversible Verbiegen eines Tragarms.
We report on a bistable MEMS device actuated by spin‐crossover molecules. The device consists of a freestanding silicon microcantilever with an integrated piezoresistive detection system, which was coated with a 140 nm thick film of the [Fe(HB(tz)3)2] (tz=1,2,4‐triazol‐1‐yl) molecular spin‐crossover complex. Switching from the low‐spin to the high‐spin state of the ferrous ions at 338 K led to a reversible...
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