Deriving the Relationship of Cubic Crystal Structure

In summary, the relationship for a cubic crystal can be derived using the equation d= \frac{a}{\sqrt{h^2 + k^2 + l^2}}. This can be found in a previous post on a forum. The sum of the squares of the cosines is equal to one, which can be explained using trigonometry.
  • #1
alexgmcm
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How can one derive the relationship for a cubic crystal:
[itex]d= \frac{a}{\sqrt{h^2 + k^2 + l^2}}[/itex]

It is shown here.

This is probably trivial but I am having trouble proving it as the Miller indices are reciprocals but the reciprocal is not distributive. This isn't for homework by the way - I am just going over solid state stuff from last year trying to get a more solid understanding than I got when I just learned it by focusing on the then impending exams.

Any help would be greatly appreciated. :)
 
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  • #2

Related to Deriving the Relationship of Cubic Crystal Structure

What is a cubic crystal structure?

A cubic crystal structure is a type of crystal lattice where the atoms or molecules are arranged in a cubic shape, with equal dimensions in all three directions. This structure is often found in metals, minerals, and other solid materials.

How do you derive the relationship of cubic crystal structure?

The relationship of cubic crystal structure can be derived by analyzing the arrangement of atoms or molecules in the crystal lattice and identifying the repeating unit cells. By understanding the symmetry and geometry of the unit cells, we can determine the relationships between the dimensions of the crystal structure.

What are the three types of cubic crystal structures?

The three types of cubic crystal structures are simple cubic, body-centered cubic, and face-centered cubic. In simple cubic, the atoms or molecules are only present at the corners of the unit cell. In body-centered cubic, there is an additional atom at the center of the unit cell. And in face-centered cubic, there are atoms at both the corners and the center of each face of the unit cell.

What are the characteristics of a cubic crystal structure?

Some common characteristics of a cubic crystal structure include high symmetry, regular arrangement of atoms or molecules, and equal dimensions in all three directions. These structures also tend to have high melting and boiling points, as well as high mechanical strength.

What are some real-life applications of cubic crystal structures?

Cubic crystal structures have many practical applications in various industries. For example, they are used in the production of steel, which has a body-centered cubic structure. They are also used in electronics, as the face-centered cubic structure is commonly found in semiconductors. Additionally, cubic crystal structures are utilized in the production of gemstones and jewelry, such as diamonds and rubies.

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