各向异性
缩放比例
材料科学
电阻率和电导率
凝聚态物理
张量(固有定义)
功勋
格子(音乐)
限制
统计物理学
费米能量
物理
几何学
量子力学
机械工程
光电子学
数学
工程类
电子
声学
作者
Kristof Moors,Kiroubanand Sankaran,Geoffrey Pourtois,Christoph Adelmann
出处
期刊:Physical Review Materials
[American Physical Society]
日期:2022-12-23
卷期号:6 (12)
被引量:1
标识
DOI:10.1103/physrevmaterials.6.123804
摘要
The resistivity scaling of metals is a crucial limiting factor for further downscaling of interconnects in nanoelectronic devices that affects signal delay, heat production, and energy consumption. Here, we generalize a commonly considered figure of merit for selecting promising candidate metals with highly anisotropic Fermi surfaces in terms of their electronic transport properties at the nanoscale. For this, we introduce a finite-temperature transport tensor, based on band structures obtained from first principles. This transport tensor allows for a straightforward comparison between highly anisotropic metals in nanostructures with different lattice orientations and arbitrary transport directions. By evaluating the temperature dependence of the tensor components, we also assess the validity of a Fermi surface-based evaluation of the transport properties at zero temperature, rather than considering standard operating temperature conditions.
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