Search for dissertations about: "Hall measurements"

Showing result 11 - 15 of 30 swedish dissertations containing the words Hall measurements.

  1. 11. Theoretical Studies of Spin-Dependent Quantum Phenomena in Semiconductor Nanostructures

    Author : Patrik Brusheim; Lund University.; Lunds universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Zitterbewegung.; spin Hall effect; spintronics; Spin; quantum transport;

    Abstract : The study of spin transport has emerged at the forefront of condensed matter physics during the last decade. Much of the interest has undoubtedly been sparked by the advent of the spintronics paradigm and the idea of creating novel electronic devices based on the spin degree of freedom of the carriers. READ MORE

  2. 12. Electron transport properties of graphene and graphene field-effect devices studied experimentally

    Author : Youngwoo Nam; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; dual-gated graphene field effect devices; thermopower; quantum Hall effect; graphene; Aharonov-Bohm effect; chemical vapour deposition;

    Abstract : This thesis contains experimental studies on electronic transport properties of graphene with the Aharonov-Bohm (AB) effect, thermopower (TEP) measurements, dual-gated graphene field effect devices, and quantum Hall effect (QHE). Firstly, in an effort to enhance the AB effect in graphene, we place superconducting-metal (aluminium) or normal-metal (gold) mirrors on the graphene rings. READ MORE

  3. 13. Free charge carrier properties in group III nitrides and graphene studied by THz-to-MIR ellipsometry and optical Hall effect

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Nerijus Armakavicius; Linköpings universitet.; Linköpings universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Development of silicon based electronics have revolutionized our every day life during the last five decades. Nowadays silicon based devices operate close to their theoretical limits that is becoming a bottleneck for further progress. READ MORE

  4. 14. Nanostructures for Optoelectronics : Device Fabrication and Characterization

    University dissertation from Division of Solid State Physics, Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden

    Author : Olof Hultin; Lund University.; Lunds universitet.; Lund University.; Lunds universitet.; [2018-04-18]
    Keywords : Fysicumarkivet A:2018:Hultin;

    Abstract : The nanoscale is an exciting domain when it comes to crystal growth, light-matter interaction and electronics. Especially for optoelectronics, semiconductor nanostructures have many advantages compared to traditional planar structures and are highly interesting for the next generation of solar cells, photodetectors and light emitting diodes. READ MORE

  5. 15. Quantum Transport Theory in Graphene

    University dissertation from Division of Solid State Physics, Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden

    Author : Anders Bergvall; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; quantum coherent electron transport; nanoribbons; FT-LDOS; grain boundaries; tight-binding; graphene;

    Abstract : In this thesis, we focus on different aspects of electron transport in nanostructured graphene (such as graphene nanoribbons). Wedevelop and implement numerical methods to study quantum coherent electron transport on an atomistic level, complemented by analytical calculations based on the Dirac approximation valid close to the points $\vec{K}$ and $\vec{K}^\prime$ in the graphene Brillouin zone. READ MORE