论文标题
各向异性的三维弱定位，在具有氮夹杂物的超晶体钻石膜中
Anisotropic three-dimensional weak localization in ultrananocrystalline diamond films with nitrogen inclusions
论文作者
论文摘要
我们介绍了对超纳米晶钻石膜的结构和电子特性的研究，这些膜在化学蒸气沉积生长过程中通过在气体混合物中添加氮来改变。 Hall Bar设备是从生成的膜中制造的，以研究其电气传导，这是温度和磁场的函数。通过低温的磁化测量值，我们提供了有力的证据，表明这些薄膜中的主要传导机制可以通过3D弱定位（3DWL）和在较高温度下的热激活跳跃来解释。然后，应用各向异性3DWL模型作为温度功能提取相位互动时间，这表明了与理论一致的幂律依赖性的证据。
We present a study of the structural and electronic properties of ultra-nanocrystalline diamond films that were modified by adding nitrogen to the gas mixture during chemical vapour deposition growth. Hall bar devices were fabricated from the resulting films to investigate their electrical conduction as a function of both temperature and magnetic field. Through low-temperature magnetoresistance measurements, we present strong evidence that the dominant conduction mechanism in these films can be explained by a combination of 3D weak localization (3DWL) and thermally activated hopping at higher temperatures. An anisotropic 3DWL model is then applied to extract the phase-coherence time as function of temperature, which shows evidence of a power law dependence in good agreement with theory.
