Experimental methods for determining crystal structure: Difference between revisions
Jump to navigation
Jump to search
| Line 3: | Line 3: | ||
==Electron scattering== | ==Electron scattering== | ||
Because electrons do have a wave nature, they can also be scattered off atoms in a crystal lattice, this process is similar to X-ray scattering. Some differences are that #Electrons used in this way have a smaller wavelength than X-rays, this allows for greater resolution. # The sample must be very thin, on the order of 100nm. | Because electrons do have a wave nature, they can also be scattered off atoms in a crystal lattice, this process is similar to X-ray scattering. Some differences are that | ||
#Electrons used in this way have a smaller wavelength than X-rays, this allows for greater resolution. | |||
#The sample must be very thin, on the order of 100nm. | |||
Revision as of 21:26, 16 April 2009
X-ray scattering
X-rays are scattered off the periodically arranged atoms, the particular ways the X-rays scatter give information about the location of atoms in the crystal lattice.
Electron scattering
Because electrons do have a wave nature, they can also be scattered off atoms in a crystal lattice, this process is similar to X-ray scattering. Some differences are that
- Electrons used in this way have a smaller wavelength than X-rays, this allows for greater resolution.
- The sample must be very thin, on the order of 100nm.