Iv ) for the strong interfacial coupling , there exist three pyroelectric peaks in the temperature curve of pyroelectric coefficient , and with the decrease of the interfacial coupling , the number of the pyroelectric peaks will decrease gradually 我们还发现,较强的界面耦合导致热电系数的温度曲线上的三个热电峰的出现;而界面耦合强度的减弱及铁电超晶格尺寸的减少将导致某些热电峰的消失。
Computer programs were writte11 using theory above to calculating the arbitrary structure multi - layer conductor x - ray diftyaction . the experiment data is simulated using dynamical and kinematical theory respectively to get the structure parameters of the sample 利用上面的理论,编写了可以计算任意多层结构半导体的x射线衍射程序,分别用动力学和运动学衍射理论模型进行实验数据的数值模拟,得到超晶格样品的结构参数。
It plays a significant role in the studies of the in - plane optical anisotropy of the lower dimensional structures of semiconductor materials their quantum - well superlattices , or the semiconductor surface restructuring , or the real time monitoring in the semiconductor epitaxy growth process 它对研究半导体材料及其量子阱超晶格等低维结构中的平面内光学各向异性、半导体表面重构和对外延生长过程中的实时监控都具有重要作用。
However , the change in the well depth of the two materials will affect one another the thermal conductivity greatly , and because of the lattice mismatch , the strain appears in the interfaces of the superlattice , thus rendering an obvious modification of the thermal conductivity of the two materials 而势阱深度的改变则两种材料的导热性能会相互产生影响,但在晶格不匹配时,超晶格薄膜的界面出现了应变,两者的导热系数均会产生较大的变化。