Page "Diffractometer" Paragraph 1

Because it is relatively easy to use electrons or neutrons having wavelengths smaller than a nanometer, electrons and neutrons may be used to study crystal structure in a manner very similar to X-ray diffraction.

Electrons do not penetrate as deeply into matter as X-rays, hence electron diffraction reveals structure near the surface ; neutrons do penetrate easily and have an advantage that they possess an intrinsic magnetic moment that causes them to interact differently with atoms having different alignments of their magnetic moments.