室温下分子合成的量子探针
Quantum probe for molecular synthesis at room temperature
摘要：
本文研究了一种生物化学中的典型反应，该反应涉及一种名为咪唑（C3H4N2）的生物分子及其对过渡金属（如Co、Ni、Cu、Fe等）的亲和力。已经被用来说明和验证弹道导体作为量子水平上的分子反应的探针的使用。过渡金属Co的原子点接触是使用电沉积，然后在水溶液中与咪唑反应。由于咪唑分子与Co原子共价键合，纳米接触的量子化电导降低，从而为研究分子反应提供了量子探针。在反应过程中，由于Co与咪唑的共价键合，纳米接触内的不同电导通道变得不可用，从而也提供了研究对纳米接触本身中的总电导有贡献的通道数量的手段。
英文摘要：
In the present study, a prototypical reaction in biochemistry involving a well-known bio-molecule called imidazole (C3H4N2) and its known affinity towards transition metals (such as Co, Ni, Cu, Fe, etc.) has been used to illustrate and exemplify the use of ballistic conductors as probes for molecular reactions at the quantum level. Atomic point contacts of transition metal Co were made using electro-deposition, followed by their reaction with imidazole in an aqueous solution. As the imidazole molecules covalently bond with the Co atoms, the quantized conductance of the nanocontact decreases, thus providing a quantum probe for studying molecular reactions. During the course of the reaction, different conductance channels within the nanocontact become unavailable due to covalent bonding of Co with imidazole, thereby also providing a means of studying the number of channels contributing to the total conductance in the nanocontact itself.
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