金属-氧原子链的形成与性质
Formation and properties of metal-oxygen atomic chains
摘要：
由单个贵金属和氧原子组成的悬浮链已经形成。我们提供的证据表明，氧可以与金属一维原子链反应，并被纳入。氧的掺入增强了链中的线性键，这有助于产生更长的原子链。这些双原子链的力学和电学性质进行了研究，通过确定链的局部振动模式，并通过测量链的长度上的平均链电导的依赖性。此外，我们已经进行了计算，使洞察的物理机制的氧诱导加强的线性键和导电的金属-氧链。
英文摘要：
Suspended chains consisting of single noble metal and oxygen atoms have been formed. We provide evidence that oxygen can react with and be incorporated into metallic one-dimensional atomic chains. Oxygen incorporation reinforces the linear bonds in the chain, which facilitates the creation of longer atomic chains. The mechanical and electrical properties of these diatomic chains have been investigated by determining local vibration modes of the chain and by measuring the dependence of the average chain-conductance on the length of the chain. Additionally, we have performed calculations that give insight in the physical mechanism of the oxygen-induced strengthening of the linear bonds and the conductance of the metal-oxygen chains.
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