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在有效质量近似理论下,利用转移矩阵和有效垒高方法研究了有限磁场下含结构缺陷的多组分超晶格中局域电子态的性质.在考虑各组分层有效质量的失配时,外加磁场会导致磁耦合效应的出现.磁耦合效应不仅引起局域电子能级的量子化,并且随着朗道指数或磁场强弱的变化,局域能级及其局域程度都会发生显著移动,特别是对高能区域的局域电子态影响更大.此外,还计算了电子输运系数,讨论了含结构缺陷的三组分超晶格中局域电子能级与输运谱透射禁区中的共振透射峰的关系,发现两者之间有着很好的对应关系,为相应的实验研究提供了依据.
Under the effective mass approximation theory, the property of local electronic states in multi-component superlattices with structural defects under finite magnetic field is studied by using transfer matrix and effective barrier height method. When considering the mismatch between the effective mass of each layer , The external magnetic field will lead to the appearance of magnetic coupling effect.Magnetic coupling effect not only causes the quantization of the local electron energy level, but also with the Landau index or the magnetic field strength, the local energy level and its local extent will occur significantly Especially in the high-energy region.Furthermore, we also calculate the electron transport coefficient and discuss the local electronic energy level and transport spectrum transmission restricted area in the three-component superlattice with structural defects In the resonant transmission peak of the relationship between the two found a good correspondence between the corresponding experimental study provided the basis.