Sökning: "Coulomb repulsion"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Coulomb repulsion.

  1. 1. Three-Dimensional Metal-Semiconductor Heterostructures for Device Applications

    Detta är en avhandling från Lars-Erik Wernersson Norbergsg. 3 223 54 Lund

    Författare :Lars-Erik Wernersson; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [1998]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Schottky contacts; space-charge spectroscopy; ballistic transport; Coulomb repulsion; electron interference; resonant tunnelling; lateral confinement; heterojunction permeable base transistor; resonant tunnelling diodes; Fysicumarkivet A:1998:Wernersson; Fysik; Physics; resonant tun; epitaxial overgrowth;

    Sammanfattning : Fabrication and characterisation of buried metal contacts in compound semiconductors are demonstrated. The contacts have been investigated due to their usage both as gates in transistors and as active or passive elements in novel devices. LÄS MER

  2. 2. Time-resolved detection of temporally correlated, single-charge tunnelling

    Detta är en avhandling från Lars-Erik Wernersson Norbergsg. 3 223 54 Lund

    Författare :Jonas Bylander; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Josephson junctions; time-correlated tunnelling; radio-frequency single-electron transistor; current standard; charge solitons; SET oscillations; Coulomb blockade; metrology; SET; tunnel junction array;

    Sammanfattning : We report real-time detection of the single charges that constitute a small electrical current, as they flow through a nano-electronic device. This represents a direct demonstration of charge discreteness in an electrical current. LÄS MER

  3. 3. Electrical Studies of Quantum Devices

    Detta är en avhandling från Solid State Physics, Lund University

    Författare :Sven-Bertil Carlsson; [1999]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Single electron transistor; Resonant tunneling diode; Quantized conductance; In situ measurements; Coulomb blockade Ratchet; Fysicumarkivet A:1999:Carlsson; Fysik; Physics;

    Sammanfattning : Popular Abstract in Swedish Denna avhandling behandlar studier av elektriska komponenter med egenskaper dominerade av s.k. kvantfenomen. Dessa komponenter har ur flera synvinklar många önskvärda egenskaper, t. LÄS MER

  4. 4. Studies on hybrid superconducting junctions

    Detta är en avhandling från Solid State Physics, Lund University

    Författare :Cecilia Holmqvist; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Critical Current; Single-Electron Box; Attractive Correlations; Josephson Junction; Negative Charging Energy; Quasiclassical Superconductivity; Josephson Current;

    Sammanfattning : In the field of nanoelectronics, one seeks to combine quantum mechanical effects with macroscopic entities such as currents in order to find new ways of storing and manipulating information. One possibility to accomplish this is to use the quantum correlations found in superconductors. LÄS MER

  5. 5. Interacting Dirac Matter

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Saikat Banerjee; KTH.; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dirac; superconductor; magnon; interaction; Fermi liquid theory; renormalization; Physics; Fysik;

    Sammanfattning : The discovery of graphene in 2004 has led to a surge of activities focused on the theoretical and experimental studies of materials hosting linearly dispersive quasiparticles during the last decade. Rapid expansion in the list of materials having similar properties to graphene has led to the emergence of a new class of materials known as the Dirac materials. LÄS MER