PPT-Basics of RF superconductivity

Walter Venturini Delsolaro CERN Lectures for the CERN summer students 1718 July 2023 Minimal introduction These lectures are about Superconducting RF cavities their physics and technology. These are meta llic materials with very large electronic effective mass 100 or more times larger than the bare electron mass arising from an antiferromagnetic interaction between c onduction electrons and the local magnetic moments Kondo effect resi Chapter 11). BCS theory has established that superconductivity in conventional materialsarises from interactions of the conduction electrons with the vibrations of the atoms.This interaction enables a A discussion based on the Topical Review published in. Superconductor Science and Technology . 26. , . 113001 (2013). Contributors: . S . Nishijima. , S . Eckroad. , A Marian, K . Choi. , W S Kim, M . By: Shruti . Sheladia. ,. . Garrett M Leavitt, . Stephanie . Schroeder,. . Christopher . Dunn. , Kathleen . Brackney. Levitation of a magnet above a high temperature superconductor illustrating the . Leon Cooper . Walther . Meissner. Sir James Dewar . Heike . Kamerlingh-Onnes. . The technological advance that allowed . Onnes. to observe superconductivity was?. liquefying helium . (T = 4 K). Nick Hill. EE 4611. 4-20-16. Outline. Superconductivity:. Definition. Properties . Josephson Junctions:. Definition. Properties. SQUIDs (Superconducting Quantum Interference Devices). Architecture. Principle of operation. Centrifugal Fan Selection. • Fan Laws. . Specific Speed. • Multiple Fan Arrangements. . Fan Features and Considerations. Fan Selection Basics. 4. Fan Selection Basics. Centrifugal Fan Selection. Vivian O’Neill. ,. CH, NHP, R. BIE. Diamond Manager. Our Quality. . . . . . WE EARN OUR CUSTOMERS’ TRUST FOUR STEPS AT A TIME.. Step One: Raw Material Sourcing.. We travel the world to inspect our suppliers' facilities and processes to ensure the highest quality natural ingredients are harvested and handled to protect key essential nutrients. Then, we verify each ingredient’s true beneficial potential.. Nick Hill. EE 4611. 4-20-16. Outline. Superconductivity:. Definition. Properties . Josephson Junctions:. Definition. Properties. SQUIDs (Superconducting Quantum Interference Devices). Architecture. Principle of operation. Antonio M. Garc. í. a-Garc. í. a . Cavendish Laboratory, Cambridge University. Pedro Ribeiro Lisbon. Bermudez. Cambridge . C. azalilla. Tsinghua. track. M. A. Floyd. Massachusetts Institute of Technology, Cambridge, MA, USA. GPS Data Processing and Analysis with GAMIT/GLOBK and . track. GNS Science, Lower Hutt, New Zealand. 26 February–2 March 2018. 2021 Intellectual Merit. We have discovered a new nickel-oxide superconductor, . Nd. 6. Ni. 5. O. 12. .. Superconducting materials are technologically important because electricity flows through them without resistance. . Marie Hofmann. Source: https://www.sciencealert.com/superconductivity. Outline. 1 . Introduction. 2 . Microscopic. . theory. . of. . superconductivity. 2.1 BCS . Hamiltonian. 2.2 Mean-. field. BCS theory . Superconductivity phenomenology, London equation, BCS Hamiltonian, . Bogoliubov. -de . Gennes. Hamiltonian, BCS ground state, gap equation. Resistivity goes to 0 abruptly at temperature .