Room temperature control of spin states in a thin film of a photochromic iron(II) complex
Room temperature control of spin states in a thin film of a photochromic iron(II) complex
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DOI：
10.1039/c7mh01042g
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发表时间：
2018-05
影响因子：
13.3
通讯作者：
Lorenzo Poggini;M. Milek;G. Londi;A. Naim;G. Poneti;L. Squillantini;A. Magnani;F. Totti;P. Rosa;Marat M. Khusniyarov;M. Mannini
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文献类型：
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作者：
Lorenzo Poggini;M. Milek;G. Londi;A. Naim;G. Poneti;L. Squillantini;A. Magnani;F. Totti;P. Rosa;Marat M. Khusniyarov;M. Mannini
具有光致变色二芳基乙烯配体的分子自旋交叉铁 (II) 络合物薄膜通过在超高真空中升华在 Au(111) 单晶上生长，并通过 X 射线和紫外光电子能谱进行了研究。温度相关研究表明，热诱导的自旋交叉行为在薄膜中得以保留。故意整合到复合物中的光致变色配体允许在室温下对该铁(II)复合物的自旋态进行光切换，并且在5 nm厚的升华薄膜中仍然可以观察到这种光磁效应。因此，这项工作开辟了新的视野，推动双稳态自旋交叉系统更接近在室温下运行的分子电子学和分子自旋电子学器件的预期应用。
Thin films of a molecular spin crossover iron(II) complex featuring a photochromic diarylethene-based ligand have been grown by sublimation in ultra-high vacuum on an Au(111) single crystal, and investigated by X-ray and UV photoelectron spectroscopies. Temperature-dependent studies demonstrate that the thermally induced spin crossover behaviour is preserved in thin films. The photochromic ligand deliberately integrated into the complex allows photoswitching of the spin states of this iron(II) complex at room temperature, and this photomagnetic effect is still observed in 5 nm thick sublimated films. Thus, this work opens new horizons and pushes bistable spin crossover systems closer to prospective applications in molecular electronics and molecular spintronics devices functioning at room temperature.