(a) Schematic diagram of the angstrom-beam electron diffraction method. (b) Electron diffraction patterns obtained from amorphous Zr-Ni alloy with different beam sizes. The pattern with 100-nm beam ...

When a laser beam is incident on a narrow opaque object such as a fine wire or a strand of hair, the resulting diffraction pattern is similar to the diffraction pattern of a slit of the same width as ...