在和链的交点处进行非平衡的热校正
Sergey V Dmitriev1,2, Vitaly A Kuzkin3,4, Anton M Krivtsov3,4
1Institute of Molecule and Crystal Physics, Ufa Federal Research Centre of RAS, Ufa 450054, Russia.
Physical review. E
|December 20, 2023
概括
在和链中非平衡的能量分布会产生热二极管效应. 这种传热现象可以优化,以在纳米材料中实现理想的热校正.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 热力学是一种热力学.
- 纳米材料科学科学 纳米材料科学
背景情况:
- 一个热二极管或整流器可促进定向热传输.
- 了解异质纳米材料中的热传输至关重要.
研究的目的:
- 研究波数间能量分布对二极管效应的影响.
- 分析两个不相似的和链的结点.
主要方法:
- 导出用于二极管系数的分析表达式.
- 对横跨交叉点的两个方向的热流的分析.
主要成果:
- 二极管系数取决于波数之间的能量分布.
- 平衡能量分布导致没有二极管效应.
- 非平衡分布在波系统中诱导二极管效应.
结论:
- 通过调整能量分布和光谱定位,可以最大限度地提高二极管效应.
- 建立了一个理想的热整流器的条件.
- 这些发现对低维异质纳米材料的热传递具有重要意义.
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