different colors-> different atoms (2D crystal) There is a square lattice that has 2 basis atoms A and B. Atomic B form factor of each is fA and fB a (a) Find the primitive unit cell of this lattice and write the coordinates of basis atoms (How many basis atoms in a primitive cell?) A (b) Draw reciprocal lattice of this crystal and find reciprocal lattice vectors. (c) Find structure factor SG of a reciprocal lattice points about G. * structure factor SG =zj fj exp(-iG-rj) (j: primitive unit cell 210| 2E basis Af) (d) If A and B are the same atoms fA=fB=f. If so, find G, so that SG is not zero. Draw all G points. (e) in (d) find primitive lattice vector and unit cell in real space and k-space. Find lattice constant.

different colors-> different atoms (2D crystal) There is a square lattice that has 2 basis atoms A and B. Atomic B form factor of each is fA and fB a (a) Find the primitive unit cell of this lattice and write the coordinates of basis atoms (How many basis atoms in a primitive cell?) A (b) Draw reciprocal lattice of this crystal and find reciprocal lattice vectors. (c) Find structure factor SG of a reciprocal lattice points about G. * structure factor SG =zj fj exp(-iG-rj) (j: primitive unit cell 210| 2E basis Af) (d) If A and B are the same atoms fA=fB=f. If so, find G, so that SG is not zero. Draw all G points. (e) in (d) find primitive lattice vector and unit cell in real space and k-space. Find lattice constant.

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter10: Statistical Physics

Section: Chapter Questions

Problem 4P

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