Which outcome occurs when electron's de Broglie wavelength approaches the size of a periodic crystal lattice?

💡 Explanation

When the electron wavelength is comparable to lattice spacing, Bragg diffraction occurs because coherent scattering from lattice planes interferes constructively, forming electronic band gaps. Therefore diffraction leads to band gaps instead of scattering, breakdown, or magnetism effects, which require different physical mechanisms.

• Which mechanism explains why radio wave signal weakens rapidly behind a large metal building?
• Which outcome weakens oxide layers during high-temperature chlorination?
• Which event occurs when neutron moderators fail in fission?
• Which risk increases when a centrifugal pump operates far from its best efficiency point?
• Which consequence results when rapid airflow disrupts differential pressure within an aircraft's pitot-static system?
• Which mechanism causes complete resistance loss in superconducting magnets?