Effects of subconduction band excitations on thermal conductance at metal-metal interfaces

被引：16

作者：

Hopkins, Patrick E. ^{[1
]}

Beechem, Thomas E. ^{[1
]}

Duda, John C. ^{[2
]}

Smoyer, Justin L. ^{[2
]}

Norris, Pamela M. ^{[2
]}

机构：

[1] Sandia Natl Labs, Engn Sci Ctr, Albuquerque, NM 87185 USA

[2] Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA 22904 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 01期

基金：

美国国家科学基金会;

关键词：

aluminium; conduction bands; copper; Fermi level; Fermi surface; interface structure; thermal conductivity;

D O I：

10.1063/1.3276908

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Increased power densities combined with the decreased length scales of nanosystems give rise to large thermal excitations that can drastically affect the electron population near the Fermi surface. In light of such conditions, a model is developed for electron thermal boundary conductance (eTBC) that accounts for significant changes in the electron and hole populations around the Fermi level that occur at heightened temperatures. By including the contribution of subconduction band electrons to transport and evaluating the transmission coefficient based upon the total number of available states, an extension of eTBC predictions to high temperatures is made possible.

引用

页数：3

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