微纳米可图案化磁性碳
Micro and nano patternable magnetic carbon
摘要：
碳通常与磁性无关，并且关于其纳米技术前景的大部分讨论似乎集中在其电子输运性质上。在现有的几个磁性碳生产的例子中，没有一个发现在可扩展的微米和纳米制造中的直接适用性。在这里，我们介绍了一种顺磁性形式的碳，其前体聚合物可以在热解之前被光刻图案化为微米和纳米结构。这种不反应和热稳定的材料具有很强的室温顺磁性，这是由于大量的未成对电子具有有限的迁移率，这是通过控制热解过程中键解离和形成的进展来实现的。这种磁性碳的制造具有（3.97 x 0.8）10^17自旋/ mg，可以立即使许多自旋电子和磁性MEMS应用受益，并且还揭示了关于碳中磁性存在和机制的争议理论。
英文摘要：
Carbon is conventionally not associated with magnetism, and much of the discussion of its nanotechnology perspectives appears to be centered on its electron transport properties. Among the few existing examples of magnetic carbon production, none has found a direct applicability in scalable micro and nano fabrication, Here we introduce a paramagnetic form of carbon whose precursor polymers can be lithographically patterned into micro and nano structures prior to pyrolysis. This unreactive and thermally robust material features strong room-temperature paramagnetism owing to a large number of unpaired electrons with restricted mobility, which is achieved by controlling the progression of bond dissociation and formation during pyrolysis. The manufacture of this magnetic carbon, having (3.97 x 0.8) 10^17 spins/ mg, can immediately benefit a number of spintronic and magnetic MEMS applications, and also shed light on the controversial theories concerning the existence and mechanisms of magnetism in carbon.
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