超晶格
束缚态
异质结
波函数
凝聚态物理
格子(音乐)
可积系统
物理
量子力学
外延
冯·诺依曼建筑
材料科学
数学物理
数学
纯数学
纳米技术
图层(电子)
声学
出处
期刊:Physica
[Elsevier]
日期:1976-11-01
卷期号:85 (1): 44-50
被引量:50
标识
DOI:10.1016/0378-4363(76)90097-8
摘要
We offer a theoretical method, based in part on an earlier mathematical model of Weidmann, for designing one-dimensional, rectangular, heterostructure superlattices which support square-integrable states at energies above the lattice barriers. The lattice potential vanishes asymptotically, giving a bound state in the continuum of the originally suggested by von Neumann and Wigner for smoothly oscillating potentials. Examples include wavefunctions and potentials having dimensions similar to those of real GaAs-AlxGa1−xAs heterostructures, and analysis of the spontaneous ionization and transmission widths of the states for finite lattices.
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