Information om | Engelska ordet SUPERCONDUCTIVITY

Exempel på hur man kan använda SUPERCONDUCTIVITY i en mening

• In physics, the Bardeen–Cooper–Schrieffer (BCS) theory (named after John Bardeen, Leon Cooper, and John Robert Schrieffer) is the first microscopic theory of superconductivity since Heike Kamerlingh Onnes's 1911 discovery.
• Cooper and John Robert Schrieffer for a fundamental theory of conventional superconductivity known as the BCS theory.
• Conventional superconductors are materials that display superconductivity as described by BCS theory or its extensions.
• Unconventional superconductors are materials that display superconductivity which is not explained by the usual BCS theory or its extension, the Eliashberg theory.
• His accomplishments include the independent co-discovery of the density matrix method in quantum mechanics (alongside John von Neumann), the quantum mechanical theory of diamagnetism, the theory of superfluidity, the theory of second-order phase transitions, invention of order parameter technique, the Ginzburg–Landau theory of superconductivity, the theory of Fermi liquids, the explanation of Landau damping in plasma physics, the Landau pole in quantum electrodynamics, the two-component theory of neutrinos, and Landau's equations for S-matrix singularities.
• In electronics, cryoelectronics or cryolectronics is the study of superconductivity under cryogenic conditions and its applications.
• Over 750 experiments are completed every year, in fields including magnetism, superconductivity, materials engineering, and the study of liquids, colloids and biological substances such as proteins.
• Among his achievements are a partially phenomenological theory of superconductivity, the Ginzburg–Landau theory, developed with Lev Landau in 1950; the theory of electromagnetic wave propagation in plasmas (for example, in the ionosphere); and a theory of the origin of cosmic radiation.
• A room-temperature superconductor is a hypothetical material capable of displaying superconductivity above , operating temperatures which are commonly encountered in everyday settings.
• The Cooper pair state is responsible for superconductivity, as described in the BCS theory developed by John Bardeen, Leon Cooper, and John Schrieffer for which they shared the 1972 Nobel Prize.
• Self-consistent renormalization, a theory for magnetic materials also used in high-temperature superconductivity.
• In addition to his scientific endeavors with contributions in optics, crystallography, quantum theory, superconductivity, and the theory of relativity, Laue had a number of administrative positions which advanced and guided German scientific research and development during four decades.
• He proposed the Cooper pair mechanism in 1956 and in 1972 he was awarded the Nobel Prize in Physics with John Bardeen and John Robert Schrieffer for the development of the BCS theory of superconductivity.
• The BCS theory (Bardeen-Cooper-Schrieffer) of superconductivity, as it is now known, accounted for more than 30 years of experimental results that had stymied some of the greatest theorists in physics.
• Best known for his pioneering work on superconductivity and quantum tunnelling, he was awarded the Nobel Prize in Physics in 1973 for his prediction of the Josephson effect, made in 1962 when he was a 22-year-old PhD student at Cambridge University.
• In the summer of 1957, David Pines visited Copenhagen, and introduced Bohr and Mottelson to the pairing effect developed in theories of superconductivity, which inspired them to introduce a similar pairing effect to explain the differences in the energy levels between even and odd atomic nuclei.
• Anderson made contributions to the theories of localization, antiferromagnetism, symmetry breaking (including a paper in 1962 discussing symmetry breaking in particle physics, leading to the development of the Standard Model around 10 years later), and high-temperature superconductivity, and to the philosophy of science through his writings on emergent phenomena.
• Zener was a theoretical physicist with a background in mathematics who conducted research in a wide range of subjects including: superconductivity, metallurgy, ferromagnetism, elasticity, fracture mechanics, diffusion, and geometric programming.
• The weak link can be a thin insulating barrier (known as a superconductor–insulator–superconductor junction, or S-I-S), a short section of non-superconducting metal (S-N-S), or a physical constriction that weakens the superconductivity at the point of contact (S-c-S).
• It has been predicted that when two different bands of electrons yield two quasiparticles, one of which has a coherence length that would indicate type I superconductivity and one of which would indicate type II, then in certain cases, vortices attract at long distances and repel at short distances.

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