%0 Journal Article
%T SURFACE AND INTERFACE OPTICAL-PHONON MODES IN A FOUR-LAYER HETEROSTRUCTURE<br>四层异质结构的表面和界面光学声子模
%A SHI JUN-JIE
%A PAN SHAO-HUA
%A <br>史俊杰
%A 潘少华
%J 物理学报
%D 1994
%I 
%X We have used the dielectric-continuum model to study the surface and interface optical-phonon modes in a four-layer heterostructure with finite thickness. The eige-nvectors, the dispersion relation and the interface charge densities are obtained. All the previous results for a dielectric slab, bilayer, trilayer and infinite four-layer he-terostructures can be reded-iced from our general relation for a finite four-layer he-terostructure. The dispersion relations and their numerical illustration for some inte-resting and practical structures such as a finite step-quantum-well are also given. This work can be regarded as a generalization of the formalism in reference 8].
%K 异质结
%K 表面
%K 界面
%K 光学声子模
%K 色散
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=777FD28D9B9D4A99B0AB657B0BAAD4A2&yid=3EBE383EEA0A6494&vid=BE33CC7147FEFCA4&iid=94C357A881DFC066&sid=C8C16F05E379B334&eid=B3645A659773B73C&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=7