Abstract The role of remote interface polar phonon modes on the electronic transport properties of dimensionally confined diamond structures have been investigated in detail. By employing a dielectric continuum model, scattering rates, hole mobility and relaxation times in mesoscopic diamond-based devices are calculated. The performance has been analyzed by inserting polar over layers on diamond with wide-band gap materials such as AlN or w − BN. We have shown that a Frohlich potential due to the interface optical phonon modes in the upper layer is created, that decays into diamond resulting in the existence of a remote polar phonon potential in the material. Hole scattering from remote polar phonons dominate on the order of two or more in magnitude resulting in substantial decrease in hole mobility in diamond. Thus, the present research will provide a milestone for understanding interface phonons that penetrate to the two-dimensional hole gas (2DHG) in confined diamond structures as compared to their bulk counterpart and can also be applied to other polar materials used for doping.

中文翻译：

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远程界面极性声子对金刚石空穴迁移率的贡献

摘要 已经详细研究了远程界面极性声子模式对尺寸受限的金刚石结构的电子输运特性的作用。通过采用介电连续介质模型，可以计算基于金刚石的介观器件中的散射率、空穴迁移率和弛豫时间。通过在具有宽带隙材料（例如 AlN 或 w - BN）的金刚石上插入极性层来分析性能。我们已经证明，由于上层中的界面光学声子模式产生了 Frohlich 势，该势衰减为金刚石，导致材料中存在远程极性声子势。来自远程极性声子的空穴散射在两个或更多数量级上占主导地位，导致金刚石中空穴迁移率的显着降低。因此，