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Analysis Study Research Paper | Physics | India | Volume 14 Issue 1, January 2025 | Popularity: 4.9 / 10

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Electrodynamics of the Josephson Vortex Lattice in High Temperature Superconductor

Dr. Vikash Kumar

Abstract: This paper reveals that Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material. Any material exhibiting these properties is a superconductor. Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered, even down to near absolute zero, a superconductor has a characteristic critical temperature below which the resistance drops abruptly to zero. An electric current through a loop of superconducting wire can persist indefinitely with no power source. The superconductivity phenomenon was discovered in 1911 by Dutch physicist Heike Kamerlingh Onnes. Like ferromagnetism and atomic spectral lines, superconductivity is a phenomenon which can only be explained by quantum mechanics. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor during its transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of perfect conductivity in classical physics. In 1986, it was discovered that some cuprate - perovskite ceramic materials have a critical temperature above 90 K (?183 ?C). Such a high transition temperature is theoretically impossible for a conventional superconductor, leading the materials to be termed high - temperature superconductors. The cheaply available coolant liquid nitrogenboilsat 77 K, and thus the existence of superconductivity at higher temperatures than this facilitates many experiments and applications that are less practical at lower temperatures.

Keywords: superconductivity, new trends, temperature, magnetic, conventional, physics, metal

Edition: Volume 14 Issue 1, January 2025

Pages: 553 - 555

DOI: https://www.doi.org/10.21275/SR241129192546

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