Sökning: "Superconductivity"

Visar resultat 1 - 5 av 21 uppsatser innehållade ordet Superconductivity.

  1. 1. Increasing the efficiency of the CERN accelerators by use of Superconducting Magnetic Energy Storage (SMES)

    Master-uppsats, Uppsala universitet/FREIA

    Författare :Joakim Kvarnström; [2021]
    Nyckelord :Energy Storage; Power Conversion; Particle Accelerator; Superconductivity; SMES;

    Sammanfattning : This report explains how an SMES is operated and how SMES systems could be used to increase the efficiency of the CERN Large Hadron Collider (LHC) and the Future Circular Collider (FCC) as well as to reduce the very high power needs of a future Muon Collider (MC). The performance of SMES for other applications and late developments of the technique will also be described. LÄS MER

  2. 2. On the superconducting critical temperature in Eliashberg theory

    Master-uppsats, KTH/Fysik

    Författare :Max Oliveberg; [2021]
    Nyckelord :Eliashberg; Superconductivity; Mathematical Physics; Eliashberg; Supraledning; Matematisk Fysik;

    Sammanfattning : This thesis presents a brief synopsis of the derivations of the BCS and Eliashberg equations. An analytic formula for the critical temperature $T_c$ in Eliashberg theory is derived, which contains a sum of iterative integral corrections. LÄS MER

  3. 3. First Principle Calculations & Inelastic Neutron Scattering on the Single-Crystalline Superconductor LaPt2Si2

    Master-uppsats, KTH/Materialvetenskap

    Författare :Mazza Federico; [2020]
    Nyckelord :Superconductivity; LaPt2Si2; Inelastic Neutron Scattering; Charge Density Wave; Band Structure Calculations; DFT; SNIC; J-PARC; Supraledning; LaPt2Si2; neutronspridning; neutronspektroskopi; Bandberäkningar; DFT; J-PARC;

    Sammanfattning : This work presents a comprehensive study on single crystalline LaPt2Si2, in which superconductivity and a charge density wave (CDW) coexist. The usage of density functional theory (DFT) modeling and Inelastic Neutron Scattering has been the primary form of investigation, in order to determine all the characteristic features of the sample taken under consideration. LÄS MER

  4. 4. Characterization of InAs-Al semiconductor-superconductor hybrid devices

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Markus Aspegren; [2020]
    Nyckelord :quantum dot; superconductivity; quantum transport; josephson junction; spectroscopy; yu-shiba-rusinov; hybrid devices; sub-gap states; quantum computer; majorana bound state; bogoliubov quasiparticle; Physics and Astronomy;

    Sammanfattning : In this thesis we study charge and spin transport through InAs-Al nanowire superconductor-semiconductor hybrid devices. We focus on assessing the quality of the InAs-Al contact interface when using a weak HCl acid to wet-etch the nanowire surface prior to metal evaporation. LÄS MER

  5. 5. Majorana bound states in Rashba nanowire junctions

    L3-uppsats, Uppsala universitet/Materialteori

    Författare :Lucas Baldo Mesa Casa; [2020]
    Nyckelord :Topological superconductivity; Rashba nanowires; Majorana Bound States;

    Sammanfattning : Nanowires with Rashba spin-orbit coupling represent a promising platform for the realization of one-dimensional topological superconductivity and Majorana bound states. In this work we investigate Majorana bound states in hybrid normal-superconductor and short superconductor-normal-superconductor junctions based on nanowires with Rashba spin-orbit coupling. LÄS MER