超晶格
For perfectly lattice-matched superlattices, a minimum thermal conductivity is observed when the period length is of the order of the effective phonon mean free path. 模擬結(jié)果表明，在晶格匹配的超晶格中，當(dāng)周期長度同聲子平均自由程相當(dāng)時，超晶格導(dǎo)熱系數(shù)將出現(xiàn)最小值。
