El efecto fue descubierto en por HEINRICH HERTZ y explicado por ver efecto JOSEPHSON efecto Magnus ver efecto MAGNUS efecto mariposa ver. Observan por primera vez el efecto Josephson en un fluido ultrafrío – Download as PDF File .pdf) or read online. Brian David Josephson Category:Josephson effect eswiki Efecto Josephson; fiwiki Josephsonin ilmiö; frwiki Effet Josephson; gawiki Cumar Josephson.
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Physics and Applications of the Josephson Effect.
For efefto work, Josephson received the Nobel Prize in Physics in Note, that although Josephson junction behaves like an inductance, there is no associated magnetic field. Please help improve it to make it understandable to non-expertswithout removing the technical details. Views Read Edit View history. The Josephson effect has found wide usage, for example in the following areas:.
The work done on the junction so the junction energy is increased by. This section does not cite any sources. The corresponding energy is hidden inside the junction. Before Josephson’s prediction, it was only known that normal i. The Josephson Inductance is also known as a Kinetic Inductance — the behaviour is derived from the kinetic energy of the charge carriers, not energy in a magnetic field.
The Josephson effect is an example of a macroscopic quantum phenomenon. Condensed matter physics Superconductivity Josephson effect Sensors Mesoscopic physics Energy physics. Wikimedia Commons has media related to Josephson effect.
The Josephson penetration depth characterizes the typical length on which an externally applied magnetic field penetrates into the long Josephson junction. In other projects Wikimedia Commons.
The DC Josephson effect is a direct current crossing the insulator in the absence of any external electromagnetic field, owing to tunneling. Josephson was the first to predict the tunneling of superconducting Cooper pairs. Unsourced material may be challenged and removed.
Josephson effect – Wikidata
A Technical Report — Part 3: Types of Josephson junction include the pi Josephson junctionvarphi Josephson junctionlong Josephson junctionand Superconducting tunnel junction.
By finding the derivative of the current with respect to time, and rearranging in the form of the inductance equation, inductance can be found.
The basic equations governing the dynamics of the Josephson effect are . Hence, for distinct AC voltages, the junction may carry a DC current and the junction acts like a perfect frequency-to-voltage converter. The first paper to claim the discovery of Josephson’s effect, and to make the requisite experimental checks, was that of Philip Jsephson and John Rowell. Please help improve this section by adding citations to reliable sources. The weak link can consist of a thin insulating barrier known as a superconductor—insulator—superconductor junctionor S-I-Sa short section of non-superconducting metal S-N-Sor a physical constriction that weakens the superconductivity at the point of contact S-s-S.
This page was last edited on 30 Novemberat One can think of a Josephson junction as a non-linear inductance which accumulates magnetic field energy when a current passes through it. The Josephson phase is the difference of the phases of the quantum mechanical wave function in two superconducting electrodes forming a Josephson junction. The Josephson effect is the phenomenon of supercurrentefect current that flows indefinitely long without any voltage applied, across a device known as a Josephson junction JJwhich consists of two or more superconductors evecto by a weak link [ clarification josephsoh ].
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Josephson effect – Wikipedia
Retrieved from ” https: It is named after the British physicist Brian David Josephsonwho predicted in the mathematical relationships for the current and voltage across the weak link. SI base units, section 2. In contrast to real inductance, no magnetic field is created by a supercurrent in a Josephson junction — the accumulated energy is the Josephson energy. Physica Status Solidi B. The Josephson energy is the potential energy accumulated in a Josephson junction when a supercurrent flows through it.
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The critical current is an important phenomenological parameter of the device that can be affected by temperature as well as by an applied magnetic field.