Search for dissertations about: "interband transport"

Found 4 swedish dissertations containing the words interband transport.

  2. 1. Electronic, Transport, and Optical Properties of Broken-Gap Heterostructures

    Author : Karin Nilsson; Matematisk fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; relaxation; magnetic resonance; supraconductors; magnetic and optical properties; k.p calculations; Condensed matter:electronic structure; electrical; interband transport; electron-hole hybridization; spin polarization; spectroscopy; spektroskopi; Kondenserade materiens egenskaper:elektronstruktur; egenskaper elektriska; magnetiska och optiska ; supraledare; magnetisk resonans;

    Abstract : This thesis examines the physical properties of broken-gap heterostructures using a multiband k.p model and self-consistent calculations. Broken-gap heterostructures, made from InAs, GaSb, and AlSb, are characterized by a special band alignment with an overlap between the InAs conduction band and the GaSb valence band. READ MORE

  4. 2. Quantum Transport in Heterostructure Nanowire Devices

    Author : Bahram Ganjipour; Fasta tillståndets fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:2014:Ganjipour;

    Abstract : This thesis investigates electronic transport in several types of novel heterostructure nanowires. The first part of the thesis focuses on band-to-band mechanisms in heterostructure nanowires for low-power electronics. First, tunnel field-effect transistors (TFETs) based on InP/GaAs heterostructure nanowires with n-i-p doping profile are explored. READ MORE

  5. 3. Calculations of electronic structures with applications to transport properties and to low energy electron diffraction

    Author : Jesper Neve; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The content of this thesis can be divided into two topics. The first topic is the calculation of the electronic structure of solids and clusters within the local density approximation. READ MORE

  6. 4. Spectroscopic studies of doped GaAs/ AlGaAs quantum wells in the high carrier density regime

    Author : Somrit Wongmanerod; Bernard GIL; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis is mainly based on experimental and theoretical investigations of the electronic structures and optical properties of p-type doped GaAs/AlGaAs quantum wells using a combination of photoluminescence and magneto-optical spectroscopy in the presence of high magnetic fields.The effects of high hole densities up to 3. READ MORE