tunnel — [ tynɛl ] n. m. • 1825 à propos de l Angleterre; angl. tunnel, du fr. tonnelle (XVIe) « longue voûte en berceau » 1 ♦ Galerie souterraine destinée au passage d une voie de communication (sous un cours d eau, un bras de mer; à travers une… … Encyclopédie Universelle
Tunnel ionization — is a process in which electrons in an atom (or a molecule) pass through the potential barrier and escape from the atom (or molecule). In an intense electric field, the potential barrier of an atom (molecule) is distorted drastically. Therefore,… … Wikipedia
Électron libre — Électron Électron Sections transversales des premières orbitales de l atome d hydrogène, le code de couleurs représentant l amplitude de probabilité de l électron Propriétés générales … Wikipédia en Français
Éléctron — Électron Électron Sections transversales des premières orbitales de l atome d hydrogène, le code de couleurs représentant l amplitude de probabilité de l électron Propriétés générales … Wikipédia en Français
Électron — Traduction à relire Electron → … Wikipédia en Français
Tunnel diode — A tunnel diode or Esaki diode is a type of semiconductor diode which is capable of very fast operation, well into the microwave frequency region, by using quantum mechanical effects. It was invented in 1958 by Leo Esaki, who in 1973 received the… … Wikipedia
Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… … Wikipedia
electron tube — an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents. Also called electronic tube. Cf. gas tube, vacuum tube … Universalium
Tunnel magnetoresistance — Magnetic tunnel junction (schematic) The Tunnel magnetoresistance (TMR) is a magnetoresistive effect that occurs in magnetic tunnel junctions (MTJs). This is a component consisting of two ferromagnets separated by a thin insulator. If the… … Wikipedia
tunnel effect — /ˈtʌnəl əfɛkt/ (say tunuhl uhfekt) noun the passage of an electron through a narrow potential barrier in a semiconductor in spite of its energy level being too low to surmount the barrier according to classical mechanics. This is explained in… …