双稳态
旋转交叉
悬臂梁
压阻效应
材料科学
微电子机械系统
分子
自旋态
凝聚态物理
离子
下降(电信)
硅
光电子学
自旋(空气动力学)
纳米技术
化学
物理
复合材料
电气工程
热力学
工程类
有机化学
作者
María Dolores Manrique-Juárez,Fabrice Mathieu,Victoria Shalabaeva,Jean Cacheux,Sylvain Rat,Liviu Nicu,Thierry Leïchlé,Lionel Salmon,Gábor Molnár,Azzedine Bousseksou
标识
DOI:10.1002/anie.201702739
摘要
Abstract 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 upward bending of the cantilever in agreement with the change in the lattice parameters of the complex. The strong mechanical coupling was also evidenced by the decrease of approximately 66 Hz in the resonance frequency in the high‐spin state as well as by the drop in the quality factor around the spin transition.
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