Visualizing lattice/atoms in cubes?

  • Thread starter Thread starter orangeincup
  • Start date Start date
orangeincup
Messages
121
Reaction score
0

Homework Statement


I have a lot of questions about body-centered, face-centered, diamond, zincblende, etc structures and how many atoms are in a face, or on the 100, 110, or 111 plane. I just want to know in general how I should visualize these. For example, why are there only 2 atoms in the 110 place of GaAs(which is meant to be a Diamond lattice?)

I have trouble seeing how there isn't more then the numbers listed for all the different structures.

Homework Equations

The Attempt at a Solution

 
I found a book that explained it better with pictures, I think I understand it now. Thanks for asking.
 

Thread 'Direction of the magnetic field of an oscillating charge'

Hello everyone, I’m considering a point charge q that oscillates harmonically about the origin along the z-axis, e.g. $$z_{q}(t)= A\sin(wt)$$ In a strongly simplified / quasi-instantaneous approximation I ignore retardation and take the electric field at the position ##r=(x,y,z)## simply to be the “Coulomb field at the charge’s instantaneous position”: $$E(r,t)=\frac{q}{4\pi\varepsilon_{0}}\frac{r-r_{q}(t)}{||r-r_{q}(t)||^{3}}$$ with $$r_{q}(t)=(0,0,z_{q}(t))$$ (I’m aware this isn’t...
View full post »

Thread 'Initial conditions for orbits around a wormhole'

Hi, I had an exam and I completely messed up a problem. Especially one part which was necessary for the rest of the problem. Basically, I have a wormhole metric: $$(ds)^2 = -(dt)^2 + (dr)^2 + (r^2 + b^2)( (d\theta)^2 + sin^2 \theta (d\phi)^2 )$$ Where ##b=1## with an orbit only in the equatorial plane. We also know from the question that the orbit must satisfy this relationship: $$\varepsilon = \frac{1}{2} (\frac{dr}{d\tau})^2 + V_{eff}(r)$$ Ultimately, I was tasked to find the initial...
View full post »

Similar threads

Lattice constant and volume density
Replies
1
Views
4K
What is the lattice constant of a zincblende structure with two types of atoms?
Replies
4
Views
2K
Engineering Bravais lattice from lattice points
Replies
0
Views
1K
Find the lattice type and base in 2D crystal
Replies
1
Views
2K
The energy dispersion relation for sc, bcc and fcc?
Replies
2
Views
4K
Anisotropic Etching in Semiconductor Fabrication
Replies
1
Views
2K
Crystallographic planes and square pyramids
Replies
1
Views
2K
Solid State Physics - Miller Planes/Indices and Finding a
Replies
7
Views
3K
Lattice constant, space between planes?
Replies
1
Views
2K
I Calculate the distance between two cleaved crystals
Replies
6
Views
3K

Hot Threads

Recent Insights

Back
Top