[問題] 固態物理問題求解~急急急!!!各位幫幫忙!!

看板Physics作者nina888 (= =)時間13年前 (2010/12/17 21:31)推噓0(4推 4噓 12→)

留言20則, 14人參與討論串1/1

如題，因為急需解出一份考題~~ 希望有高手能幫幫我解答!!! 這是其中兩題： Q1: Define the following items in detail. (a) primitive vector (b) Bravais lattice (c) reciprocal lattice (d) Brillouin zone (e) density of state (f) energy band Q2: Consider a 1d crystal with atoms regularly spaced in b. Consider the tight-binding model where the atomic wave function can be written as @(x - Ri), in which Ri is the position of i^th atom. Assume 積分 @^*(x - Ri)H@(x - Ri) dx = -E0 積分 @^*(x - Ri)H@(x -Ri+1) dx = -V1 積分 @^*(x -Ri)H@(x -Ri+2) dx = -V2 1)Show Bloch wave function of the electron @k(r). 2)Calculate the band structure E(k) 3) Show the relation between effective mass and the band width at band bottom and band edge. 希望高手能幫我解答!!! 感恩感恩!! 有意解其他題者，請來信!!! 小的願付上p幣報償，或其他小的可以接受的範圍~~ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.44.102.112

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chungweitw

12/17 21:50, , 1^F

12/17 21:50, 1^F

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nina888

12/17 22:09, , 2^F

12/17 22:09, 2^F

※ 編輯: nina888 來自: 114.44.102.112 (12/17 22:11)

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JAPTX4869

12/17 22:31, , 3^F