ECE474S09_Lecture11 - ECE 474: Principles of Electronic...

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Unformatted text preview: ECE 474: Principles of Electronic Devices Prof. Virginia Ayres Electrical & Computer Engineering Michigan State University [email protected] Lecture 11: Brief Discussion of Pr. 1.13 and VA 1.5 Chp. 02: Nanosystems Quantized energy levels: occupied or unoccupied Atoms Molecules Crystals Lecture 11: Brief Discussion of Pr. 1.13 and VA 1.5 Chp. 02: Nanosystems Quantized energy levels: occupied or unoccupied Atoms Molecules Crystals Wavelike electrons Pr. 1.13: <111> family Four “up”: [ , ,1]: Pr. 1.13: <111> family Four “down”: [ , ,1]: Pr. 1.13: <110> family Permute the “0” For (9,0): C h = 9 a 1 + 0 a 2 ; T = t 1 a 1 + t 2 a 2 = 1 a 1- 2 a 2 t 1 = 2m + n/ d R = 9/9 = 1 t 2 = - (2n + m) /d R = -18/9 = -2 Lecture 03 Many different types of wrapping result in a seamless cylinder. But The particular cylinder wrapping dictates the electronic and mechanical properties. Buckyball endcaps For (3,3): C h = 3 a 1 + 3 a 2 ; T = t 1 a 1 + t 2 a 2 = 1 a 1- 1 a 2 t 1 = 2m + n/ d R = 9/9 = 1 t 2 = - (2n + m) /d R = -9/9 = -1 Lecture 03 Many different types of wrapping result in a seamless cylinder. But The particular cylinder wrapping dictates the electronic and mechanical properties....
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This note was uploaded on 04/14/2009 for the course ECE 474 taught by Professor Ayres during the Spring '09 term at Michigan State University.

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ECE474S09_Lecture11 - ECE 474: Principles of Electronic...

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