期刊
PHYSICAL REVIEW B
卷 88, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.88.144302
关键词
-
资金
- DOE [DE-FG02-08ER46550]
In developing the phonon quasiparticle picture, Peierls discovered that, in a perfect crystal, without anharmonic umklapp (U) events, a current-carrying distribution can never relax to a zero-current distribution. Callaway introduced a simplified approximate model version of the Peierls-Boltzmann equation, retaining its ability to deal separately with normal (N) and U events. This paper clarifies and improves the Callaway model, and shows that Callaway underestimated the suppression of N processes in relaxing thermal current. The new result should improve computations of thermal conductivity from relaxation-time studies.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据