利用非平衡分子动力学方法对Si/Ge超品格结构的界面热阻进行模拟.模拟结果表明最靠近高温热浴的界面热阻控制整个结构的热传导性能,并且超品格结构的周期长度以及温度等因素也会对界面热阻产生不同影响.随着周期长度的增大,界面热阻越来越小,超晶格结构的导热能力增强.受声子非弹性散射机制的影响,界面热阻随温度的升高也逐渐减小.
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