※ [本文转录自 Electronics 看板] 作者: bor0306 (博) 看板: Electronics 标题: [题目] 请教一下...关於电材方面的问题 时间: Mon May 12 01:33:12 2008 ※ [本文转录自 Physics 看板] 作者: bor0306 (博) 看板: Physics 标题: [题目] 请教一下...关於电材方面的问题 时间: Mon May 12 01:32:22 2008 [领域]电子材料 [来源]考古题 [题目] 1.It is well-known that there are about 1022 ~ 1023 atoms/cm3. However, the most text generally describes the solid properties by one electron approximation. Please discuss the discrepancy. (10%) 2.What is the Bloch theorem? What is the importance of this theorem for solving the Schrodinger’s equation? (10%) 3.Why do the solid state physicists have to know the band structures of solids? Please describe the nearly free electron model and the tight-binding model, respectively. If the nearly free electron model of the band is rough, why do we learn it? (10%) 4.What is the density of states? What is the importance of the density of states for electronic materials? (10%) 5.Please describe the effective masses of the materials as possible as you can. Why are they different? (10%) 6.How do we discuss the optical properties of materials in the atomistic way? Please explain what are Fermi golden rule, interband transition, and intraband transition, respectively? (10%) [瓶颈] (写写自己的想法，方便大家为你解答) 希望大家能帮我解答一下...因为是期中考，所以希望能详细一点! 可以寄B信给我...非常感恩大大的帮忙@@" 拜托麻烦各位了! 谢谢....<(、_____、)> --

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