在二维片中相相一致的传输
Mohammad Hafijur Rahaman1, Nathan Tanner Sawyers1, Mourad Benamara2
1Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, United States.
概括
这项研究制造了薄的元素 (Te) 片,揭示了高孔流动性和诸如库伦阻塞和法布里-佩罗干扰等量子现象. 这些高品质的Te薄片显示出拓超导和自旋电子的前景.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 元素 (Te) 是一种具有性晶体结构的范德瓦尔斯材料.
- 它展示了预测的拓性质,使其具有显著的研究兴趣.
研究的目的:
- 制造和研究不同厚度的元素片的量子传输特性.
- 探索Te作为先进电子设备和基础物理研究材料的潜力.
主要方法:
- 制造细薄的 (Te) 片.
- 在低温 (30K和<50mK) 进行了全面的量子传输测量.
- 应用磁场来探测运输特性.
主要成果:
- 在17纳米厚的Te片中达到高孔流动性,高达1000cm2/V·s. 在30K时.
- 在低温下在薄的Te片中观察到从库伦阻塞到法布里-佩罗干扰的过渡.
- 在更薄的薄片和在磁场下明显的齐曼分裂下,证明了增强的法布里-佩罗振荡可见性.
结论:
- 高质量的薄型Te片表现出丰富的量子运输现象.
- Te是探索拓超导的有希望的材料.
- 薄铁片非常适合开发低功率的自旋电子应用.
相关概念视频
Carrier Transport
1.1K
The generation of electrical current in semiconductors is fundamentally driven by two mechanisms: drift and diffusion. These processes are essential for the functionality and performance of semiconductor-based devices.
Drift Current:
The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by:
Drift Current:
The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by:
1.1K
Plane Electromagnetic Waves II
4.2K
Consider a plane wavefront traveling in position x-direction with a constant speed. This wavefront can be utilized to obtain the relationship between electric and magnetic fields with the help of Faraday's law.
4.2K


