Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Flux_pumping> ?p ?o }
- Flux_pumping abstract "Flux pumping is a method for magnetising superconductors to fields in excess of 15 teslas. The method can be applied to any type II superconductor and exploits a fundamental property of superconductors. That is their ability to support and maintain currents on the length scale of the superconductor. Conventional magnetic materials are magnetised on a molecular scale which means that superconductors can maintain a flux density orders of magnitude bigger than conventional materials. Flux pumping is especially significant when one bears in mind that all other methods of magnetising superconductors require application of a magnetic flux density at least as high as the final required field. This is not true of flux pumping.An electric current flowing in a loop of superconducting wire can persist indefinitely with no power source. In a normal conductor, an electric current may be visualized as a fluid of electrons moving across a heavy ionic lattice. The electrons are constantly colliding with the ions in the lattice, and during each collision some of the energy carried by the current is absorbed by the lattice and converted into heat, which is essentially the vibrational kinetic energy of the lattice ions. As a result, the energy carried by the current is constantly being dissipated. This is the phenomenon of electrical resistance.The situation is different in a superconductor. In a conventional superconductor, the electronic fluid cannot be resolved into individual electrons. Instead, it consists of bound pairs of electrons known as Cooper pairs. This pairing is caused by an attractive force between electrons from the exchange of phonons. Due to quantum mechanics, the energy spectrum of this Cooper pair fluid possesses an energy gap, meaning there is a minimum amount of energy ΔE that must be supplied in order to excite the fluid. Therefore, if ΔE is larger than the thermal energy of the lattice, given by kT, where k is Boltzmann's constant and T is the temperature, the fluid will not be scattered by the lattice. The Cooper pair fluid is thus a superfluid, meaning it can flow without energy dissipation.In a class of superconductors known as type II superconductors, including all known high-temperature superconductors, an extremely small amount of resistivity appears at temperatures not too far below the nominal superconducting transition when an electric current is applied in conjunction with a strong magnetic field, which may be caused by the electric current. This is due to the motion of vortices in the electronic superfluid, which dissipates some of the energy carried by the current. If the current is sufficiently small, the vortices are stationary, and the resistivity vanishes. The resistance due to this effect is tiny compared with that of non-superconducting materials, but must be taken into account in sensitive experiments.".
- Flux_pumping wikiPageExternalLink CoombsT_2LPB01.pdf.
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- Flux_pumping wikiPageExternalLink science?_ob=ArticleURL&_udi=B6TVJ-4R5VYVP-3&_user=10&_coverDate=02%2F01%2F2008&_alid=949433122&_rdoc=1&_fmt=high&_orig=search&_cdi=5536&_sort=r&_docanchor=&view=c&_ct=1&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=bbd2a42db980cdb05f2a25add9f2ecb8.
- Flux_pumping wikiPageExternalLink search?q=%22flux+pumping%22+superconducting&t=all&sort=0&g=s.
- Flux_pumping wikiPageExternalLink www.solarmhd.com.
- Flux_pumping wikiPageExternalLink 0356.htm.
- Flux_pumping wikiPageID "23355682".
- Flux_pumping wikiPageLength "17185".
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- Flux_pumping wikiPageRevisionID "704842912".
- Flux_pumping wikiPageWikiLink A.G._Lebed_(Ed.).
- Flux_pumping wikiPageWikiLink Anatoly_Larkin.
- Flux_pumping wikiPageWikiLink Band_gap.
- Flux_pumping wikiPageWikiLink Boltzmann_constant.
- Flux_pumping wikiPageWikiLink Brian_Josephson.
- Flux_pumping wikiPageWikiLink Category:Levitation.
- Flux_pumping wikiPageWikiLink Category:Spintronics.
- Flux_pumping wikiPageWikiLink Category:Superconductivity.
- Flux_pumping wikiPageWikiLink Cooper_pair.
- Flux_pumping wikiPageWikiLink Copper.
- Flux_pumping wikiPageWikiLink Critical_State_model.
- Flux_pumping wikiPageWikiLink Cryogenics.
- Flux_pumping wikiPageWikiLink Diamagnetism.
- Flux_pumping wikiPageWikiLink Disorder_field.
- Flux_pumping wikiPageWikiLink Electric_current.
- Flux_pumping wikiPageWikiLink Electric_field.
- Flux_pumping wikiPageWikiLink Electric_motor.
- Flux_pumping wikiPageWikiLink Electric_power_transmission.
- Flux_pumping wikiPageWikiLink Electrical_resistance_and_conductance.
- Flux_pumping wikiPageWikiLink Electrical_resistivity_and_conductivity.
- Flux_pumping wikiPageWikiLink Electromagnet.
- Flux_pumping wikiPageWikiLink Electron.
- Flux_pumping wikiPageWikiLink Energy.
- Flux_pumping wikiPageWikiLink Engineering.
- Flux_pumping wikiPageWikiLink Exponential_decay.
- Flux_pumping wikiPageWikiLink Faradays_law_of_induction.
- Flux_pumping wikiPageWikiLink Fault_current_limiter.
- Flux_pumping wikiPageWikiLink Field_(physics).
- Flux_pumping wikiPageWikiLink Fritz_London.
- Flux_pumping wikiPageWikiLink Hagen_Kleinert.
- Flux_pumping wikiPageWikiLink Heat.
- Flux_pumping wikiPageWikiLink Heinz_London.
- Flux_pumping wikiPageWikiLink High-temperature_superconductivity.
- Flux_pumping wikiPageWikiLink Ion.
- Flux_pumping wikiPageWikiLink Josephson_effect.
- Flux_pumping wikiPageWikiLink Kinetic_energy.
- Flux_pumping wikiPageWikiLink L.J.M._van_de_Klundert.
- Flux_pumping wikiPageWikiLink Lenzs_law.
- Flux_pumping wikiPageWikiLink Linear_resistivity.
- Flux_pumping wikiPageWikiLink London_equations.
- Flux_pumping wikiPageWikiLink London_penetration_depth.
- Flux_pumping wikiPageWikiLink Maglev.
- Flux_pumping wikiPageWikiLink Magnet.
- Flux_pumping wikiPageWikiLink Magnetic_field.
- Flux_pumping wikiPageWikiLink Magnetic_flux_quantum.
- Flux_pumping wikiPageWikiLink Magnetic_levitation.
- Flux_pumping wikiPageWikiLink Magnetic_resonance_imaging.
- Flux_pumping wikiPageWikiLink Magnetic_separation.
- Flux_pumping wikiPageWikiLink Magnetism.
- Flux_pumping wikiPageWikiLink Magnetization.
- Flux_pumping wikiPageWikiLink Mass_spectrometry.
- Flux_pumping wikiPageWikiLink Meissner_effect.
- Flux_pumping wikiPageWikiLink Michael_Tinkham.
- Flux_pumping wikiPageWikiLink Niobium.
- Flux_pumping wikiPageWikiLink Nuclear_magnetic_resonance.
- Flux_pumping wikiPageWikiLink Particle_accelerator.
- Flux_pumping wikiPageWikiLink Phase_transition.
- Flux_pumping wikiPageWikiLink Phonon.
- Flux_pumping wikiPageWikiLink Pigment.
- Flux_pumping wikiPageWikiLink Planck_constant.
- Flux_pumping wikiPageWikiLink Qiuliang_Wang.
- Flux_pumping wikiPageWikiLink Quantum_Hall_effect.
- Flux_pumping wikiPageWikiLink Quantum_mechanics.
- Flux_pumping wikiPageWikiLink SQUID.
- Flux_pumping wikiPageWikiLink Solenoid.
- Flux_pumping wikiPageWikiLink Spectrum.
- Flux_pumping wikiPageWikiLink Superconducting_magnet.
- Flux_pumping wikiPageWikiLink Superconducting_magnetic_energy_storage.
- Flux_pumping wikiPageWikiLink Superconductivity.
- Flux_pumping wikiPageWikiLink Superfluidity.
- Flux_pumping wikiPageWikiLink Temperature.
- Flux_pumping wikiPageWikiLink Tesla_(unit).
- Flux_pumping wikiPageWikiLink Thermal_energy.
- Flux_pumping wikiPageWikiLink Thermodynamic_free_energy.
- Flux_pumping wikiPageWikiLink Timothy_Coombs.
- Flux_pumping wikiPageWikiLink Titanium.
- Flux_pumping wikiPageWikiLink Transformer.
- Flux_pumping wikiPageWikiLink Type-II_superconductor.
- Flux_pumping wikiPageWikiLink Vactrain.
- Flux_pumping wikiPageWikiLink Van_Klundert.
- Flux_pumping wikiPageWikiLink Vortex.
- Flux_pumping wikiPageWikiLink Vorticity.
- Flux_pumping wikiPageWikiLink Westinghouse_Electric_(1886).
- Flux_pumping wikiPageWikiLink Yttrium_barium_copper_oxide.
- Flux_pumping wikiPageWikiLink File:E_J_Power_Law.JPG.
- Flux_pumping wikiPageWikiLink File:Meissner_effect_p1390048.jpg.
- Flux_pumping wikiPageWikiLinkText "Flux pumping".
- Flux_pumping wikiPageUsesTemplate Template:Citation_needed.