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Free electron model
About: Free electron model is a research topic. Over the lifetime, 4678 publications have been published within this topic receiving 103535 citations.
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TL;DR: Tunable light is generated at an intensity of approximately 200 W/cm(2) as electrons with energies in the 20-40 keV range are injected into gold-silica well structures with a lateral size of just a few hundred nanometers.
Abstract: We report on a tuneable light source, a nanoscale analogue of the free-electron laser. A free electron beam passing through a nano-hole in a periodically layered metal/dielectric structure creates an optical photon source - a 'light-well'.
163 citations
Book•
27 Oct 1987
TL;DR: A survey of solid state physics can be found in this paper, with a focus on the structure of solids and the properties of the solids in terms of their properties, such as dielectric and optical properties.
Abstract: A Survey of Solid State Physics. Crystal Lattices. The Structure of Solids. Elastic Scattering of Waves. Bonding. Atomic Vibrations. Electron States. Thermodynamics of Photons and Electrons. Electrical and Thermal Conduction. Dielectric and Optical Properties. Magnetic Properties. Free Electrons and Magnetism. Superconductivity. Physics of Semiconductor Devices. Appendices.
162 citations
TL;DR: The electronic and optical properties of the ground state of the excitonic trions corresponding to an exciton bound to an electron or a hole are studied theoretically for 2D semiconductors in the whole range of the electron-to-hole effective mass ratio.
158 citations
TL;DR: In this article, the breakdown is treated as the final stage of the disproportionate rise of the electron current in very high field and the resulting dependence of the breakdown field on these factors is derived starting from the distribution of the largest hole volumes.
Abstract: In the theory of electric strength, usually referred to as free-volume theory, breakdown is initiated by free electrons accelerated by electric field in the largest of the holes present in the amorphous phase of all polymers. In contrast to previous publications, the breakdown is treated as the final stage of the disproportionate rise of the electron current in very high field. Breakdown starts when the energy Fx gained by free electrons in field F on free path of length x attains with probability P = 1 the barrier energy . Then all electrons with this energy hop over the barriers separating the traps in the compact structure. In this way breakdown is induced; the breakdown field therefore depends on the same factors as the longest free path. It is shown that, besides field-exposed volume and temperature, the pre-breakdown field stress is one of these factors. The resulting dependence of the breakdown field on these factors is derived starting from the distribution of the largest hole volumes. Calculated curves of electric strength as a function of temperature are in agreement with the measurements. The consequences for application of polymers as high-voltage insulation are indicated.
155 citations
154 citations