X-ray diffraction for 2-D crystal

Useful nucleus
Messages
374
Reaction score
62
Is it possible to perform x-ray diffraction for 2-D crystal like Graphene? If poossible how does the bragg interference criteria look like here?
 
Physics news on Phys.org
Yes it is possible. In the reciprocal space you will have rods perpendicular to the 2D-plain. Your Bragg peaks will a appear at the intersection of the Ewald sphere with the rods. For instance if you direct the incident beam perpendicular to the surface and detect the backward scattering you will detect (hk) reflections at some 2theta angles < 180. The angle will depend on vertical detector position in this case.
 

Thread 'Instantaneous dipole moment and orbitals'

Hi. I have got question as in title. How can idea of instantaneous dipole moment for atoms like, for example hydrogen be consistent with idea of orbitals? At my level of knowledge London dispersion forces are derived taking into account Bohr model of atom. But we know today that this model is not correct. If it would be correct I understand that at each time electron is at some point at radius at some angle and there is dipole moment at this time from nucleus to electron at orbit. But how...
View full post »

Similar threads

I Why X-ray scattering in crystalline solids is elastic?
Replies
5
Views
3K
I Why the reflected angle is the same as incident in x-ray diffraction?
Replies
4
Views
4K
I Van Laue Formulation: X-ray Diffraction from Crystal Structure
Replies
1
Views
2K
I What happens to X-rays if they do not meet Bragg's law?
Replies
1
Views
1K
I High Resolution X-Ray Diffraction: Explained
Replies
2
Views
5K
The Cause of X-ray crystal Diffraction
Replies
17
Views
8K
A X-Ray Diffraction: Why Doesn't It Eject Electrons?
Replies
2
Views
2K
A Warren X-ray difrraction solutions manual
Replies
1
Views
2K
I How to index single crystal Bragg peaks
Replies
3
Views
2K
Materials and x-ray diffraction
Replies
2
Views
1K

Hot Threads

Recent Insights

Back
Top