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London superconductor

См. также в других словарях:

  • London equations — The London equations, developed by brothers Fritz and Heinz London in 1935, [cite journal last= London first= F. coauthors= H. London month= March title= The Electromagnetic Equations of the Supraconductor journal= Proc. Roy. Soc. (London) volume …   Wikipedia

  • Superconductor — Supraleiter sind Materialien, deren elektrischer Widerstand beim Unterschreiten einer kritischen Temperatur Tc sprunghaft auf einen unmessbar kleinen Wert fällt. Ein Magnet schwebt über einem mit flüssigem Stickstoff gekühlten… …   Deutsch Wikipedia

  • London penetration depth — In superconductivity, London penetration depth (usually denoted as lambda, or lambda L,) characterizes the typical distance to which a weak magnetic field penetrates into a superconductor.Typical values of lambda L, are between 50 and 500 nm.… …   Wikipedia

  • London moment — The London moment is a quantum mechanical phenomenon whereby a spinning superconductor generates a magnetic field whose axis lines up exactly with the spin axis.The term may also refer to the magnetic moment of any rotation of any superconductor …   Wikipedia

  • London field — Inside a superconductor, the valence electrons are free to move so free, in fact, that in the aggregate they behave like a superfluid, not subject to friction. As a consequence, during rotation of the superconductor around an axis of symmetry,… …   Wikipedia

  • London moment — noun a) A quantum mechanical phenomenon whereby a spinning superconductive metal sphere generates a magnetic field whose axis lines up exactly with the spin axis. b) The …   Wiktionary

  • Type-II superconductor — A Type II superconductor is a superconductor characterised by its gradual transition from the superconducting to the normal state within an increasing magnetic field. Typically they superconduct at higher temperatures and magnetic fields than… …   Wikipedia

  • Efecto Meissner — Saltar a navegación, búsqueda Imán levitando sobre un material superconductor. Para experimentar los efectos de la superconductividad es necesario enfriar la muestra a muy bajas temperaturas …   Wikipedia Español

  • Superconductivity — is a phenomenon occurring in certain materials generally at very low temperatures, characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field (the Meissner effect).The electrical resistivity of a metallic …   Wikipedia

  • Superconductividad — Problemas no resueltos de la física: Superconductores de alta temperatura: ¿Por qué ciertos materiales muestran superconductividad a temperaturas mucho mayores de 50 K? …   Wikipedia Español

  • Meissner effect — Diagram of the Meissner effect. Magnetic field lines, represented as arrows, are excluded from a superconductor when it is below its critical temperature. The Meissner effect is the expulsion of a magnetic field from a superconductor during its… …   Wikipedia

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