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- Tunnel_junction abstract "In electronics, a tunnel junction is a barrier, such as a thin insulating layer or electric potential, between two electrically conducting materials. Electrons (or quasiparticles) pass through the barrier by the process of quantum tunneling. Classically, the electron has zero probability of passing through the barrier. However, according to quantum mechanics, the electron has a non-zero wave amplitude in the barrier, and hence it has some probability of passing through the barrier. Tunnel junctions serve a variety of different purposes.In multijunction photovoltaic cells, tunnel junctions form the connections between consecutive p-n junctions. They function as an ohmic electrical contact in the middle of a semiconductor device.In magnetic tunnel junctions, electrons tunnel through a thin insulating barrier from one magnetic material to another. This can serve as a basis for a magnetic detector.In superconducting tunnel junctions, two superconducting electrodes are separated by a non-superconducting barrier. Cooper pairs carry the supercurrent through the barrier by quantum tunneling, a phenomenon known as the Josephson effect. This setup can form the basis for extremely sensitive magnetometers, known as SQUIDs, as well as many other devices.In tunnel diodes, a diode allows the tunneling of electrons for certain voltages. This allows them to be used for generating high-frequency signals.".
- Tunnel_junction thumbnail TyTunnelling.png?width=300.
- Tunnel_junction wikiPageID "12953027".
- Tunnel_junction wikiPageRevisionID "555675962".
- Tunnel_junction hasPhotoCollection Tunnel_junction.
- Tunnel_junction subject Category:Electrodes.
- Tunnel_junction subject Category:Mesoscopic_physics.
- Tunnel_junction subject Category:Quantum_electronics.
- Tunnel_junction type Artifact100021939.
- Tunnel_junction type Conductor103088707.
- Tunnel_junction type Device103183080.
- Tunnel_junction type Electrode103274796.
- Tunnel_junction type Electrodes.
- Tunnel_junction type Instrumentality103575240.
- Tunnel_junction type Object100002684.
- Tunnel_junction type PhysicalEntity100001930.
- Tunnel_junction type Whole100003553.
- Tunnel_junction comment "In electronics, a tunnel junction is a barrier, such as a thin insulating layer or electric potential, between two electrically conducting materials. Electrons (or quasiparticles) pass through the barrier by the process of quantum tunneling. Classically, the electron has zero probability of passing through the barrier. However, according to quantum mechanics, the electron has a non-zero wave amplitude in the barrier, and hence it has some probability of passing through the barrier.".
- Tunnel_junction label "Jonction tunnel".
- Tunnel_junction label "Tunnel junction".
- Tunnel_junction sameAs Jonction_tunnel.
- Tunnel_junction sameAs m.02z15gd.
- Tunnel_junction sameAs Q3183536.
- Tunnel_junction sameAs Q3183536.
- Tunnel_junction sameAs Tunnel_junction.
- Tunnel_junction wasDerivedFrom Tunnel_junction?oldid=555675962.
- Tunnel_junction depiction TyTunnelling.png.
- Tunnel_junction isPrimaryTopicOf Tunnel_junction.
