The Miller indices- searching for a proof

In summary, the conversation is about a request for an explanation of Lemma 1 from "Elementary Crystallography An Introduction to the Fundamental Geometrical Features of Crystals" by Buerger. The person asking the question has tried to derive the results using equations and suggests a more elegant approach involving the number of lattice points within a quadrant. The conversation also mentions a book that discusses the same topic and provides a rough sketch. The person asking for the explanation acknowledges that this topic is not as straightforward as it may seem.
  • #1
antonni
14
0
Hi all, first let me post this (from "Elementary Crystallography An Introduction to the Fundamental Geometrical Features of Crystals" by Buerger):
https://www.physicsforums.com/attachments/1-png.82644/
Can someone please explain me the proof of Lemma 1? I just can not see it with the "mini proof" provided. Maybe a rigorous mathematical proof?

Thank you,

Anton
 

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  • #3
don't know really how to reword it...but others can try
 
  • #4
i tried for quite a while to derive the results using a*(x-x_0)+b*(y-y_0)+c*(z-z_0)=0 equations, but got B*C+B^2*C/A+C^2*B/A planes to reach A*B*C along the x axis...

there may be a more elegant approach considering the number of latice points within the quadrant (from origin to rational plane) where each point is where a new parallel plane would originate. but then you would have to remove all the degenerate planes

here is another place that states the same and does a rough sketch: https://books.google.com/books?id=SHzeQ49ZlH4C&pg=PA12&lpg=PA12&dq=ABC+planes+miller&source=bl&ots=QLFbVXZoyf&sig=RJbIjR6Nd4Gm_AJx0QClHio1GFU&hl=en&sa=X&ei=pDFmVcKoCsXUsAWiuID4DA&ved=0CDkQ6AEwAw#v=onepage&q=ABC planes miller&f=false
 
  • #5
Thanks for the reply...yes, just one of those things everyone takes for granted and think its basic knowledge, but not straight forward at all

ill try it again
 

Related to The Miller indices- searching for a proof

1. What are Miller indices and how are they used in scientific research?

Miller indices are a system used to describe the orientation of crystal planes in a crystal lattice. They are commonly used in materials science and physics to analyze the structure and properties of materials.

2. How do Miller indices work?

Miller indices are determined by finding the intercepts of a crystal plane with the three axes of a crystal lattice. These intercepts are then converted into fractions and enclosed in parentheses. The resulting numbers represent the Miller indices of the crystal plane.

3. What is the significance of Miller indices in crystallography?

Miller indices provide a way to describe the orientation of crystal planes in a crystal lattice, which is essential in understanding the arrangement of atoms within a crystal. They also help in identifying different crystal structures and predicting the properties of materials.

4. How are Miller indices used to determine the crystal structure of a material?

By analyzing the Miller indices of different crystal planes in a material, scientists can determine the symmetry and arrangement of atoms in a crystal. This information can then be used to identify the crystal structure of the material.

5. Can Miller indices be used for all types of crystal structures?

Yes, Miller indices can be used for all types of crystal structures, including simple cubic, body-centered cubic, face-centered cubic, and hexagonal close-packed structures. They can also be applied to more complex crystal structures, such as those with multiple unit cells.

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