Faculty

Andrei Manolescu

Position: Professor
Website: http://www.ru.is/haskolinn/starfsfolk/manoles

Research projects

Electronic states in core-shell nanowires
Time-dependent transport at nanoscale

My research in physics is oriented to theoretical modelling and numerical calculations of quantum-mechanical electronic properties of semiconductor nanostructures. My work includes research on two-dimensional electron systems in magnetic fields, screening, exchange, and other many-body Coulomb phenomena, edge states, transport and electromagnetic absorption in modulated systems, electronic states in periodic electric and magnetic fields, spin polarization, magnetization. At present I am mostly involved in time dependent electronic transport in open nanosystems, charge polarization, and thermoelectric transport. I am interested in core-shell nanowires, in nanostructured solar cells, and in effects related to geometrical confinement of electrons at nanoscale.

Publication

Google Scholar profile

Ágúst Valfells

Ágúst Valfells forseti tækni- og verkfræðideildar

Position: Professor
Website: http://www.ru.is/haskolinn/starfsfolk/av

Research projects

Vacuum microelectronics
Space-charge effects in electronic beams

I am interested in nano- and microscale vacuum electronics. In devices of this magnitude the mean free path for electrons is greater than the length scale of the device even under atmospheric pressure. There are many similarites to the well known behaviour of macroscopic counterparts, but at the small scale many effects which are neglected in the macroscopic regime become quite important, e.g. Coulomb collisional effects, field emission, surface roughness and quantum effects to name a few. Lately I have been investigating space-charge effects in this regime. Recent discoveries include a new mechanism for generating oscillating current in a diode, with easily tunable frequency in the THz range; and also simple new scaling laws for space-charge limited emission from cylindrical and spherical emitters.

Publication

Google Scholar profile

Halldór G Svavarsson

Halldór Svavarsson

Position: Associate Professor
Website: http://www.ru.is/haskolinn/starfsfolk/halldorsv

Research projects

Photoconductive oxide films
Arrays of Silicon nanowires for photo- and thermovoltaics

My research areas of expertise include nanolithography, nanophotonics, nanoplasmonics, optical bio- and chemical sensors, nanofabrication, integrated nanoscale devices and thin-films. In particular I have been focusing on fabrication and characterization of periodic nanostructures of metals, dielectrics and semiconductors for thermoelectric, photovoltaic and photonic applications and with a special emphasize on silicon nanowires (SiNWs). These researches have been done in close collaboration with the Nanophotonics Device group at the Electrical Engineering department of the University of Texas at Arlington (http://leakymoderesonance.com/).

Publication

Google Scholar profile

Sigurður I Erlingsson

Sigurður Ingi Erlingsson

Position: Associate Professor
Website: http://www.ru.is/haskolinn/starfsfolk/sie

Research projects

Topological insulators
Resonant flurescence in quantum dots

The focus of my reseach is theoretical condensed matter physics. I've worked on the effects of hyperfine interaction on spin dynamics in GaAs quantum dots. The role played by the Rashba spin-orbit interaction in transport in semiconductor nanostructure is something I've studied for a few years now. In order to highlight the role played by the the spin-orbit interaction I've worked on multiterminal systems (the spin-Hall effect) and transport throught periodic potential in a two terminal setup. I've also working on novel interface phenomena in magnetotransport in metallic spin-valve systems using resistor network model. More recently I've started working on topological isulators.

Publication

Google Scholar profile

Kristinn Torfason

Position: Research specialist
https://orcid.org/0000-0002-4857-7840

Research projects

Molecular Dynamics simulations on vaccum nanodiodes with field and/or thermionic emission.
Molecular dynamics simulations of field emission from a planar nanodiode and prolate spheroidal tip.
Perovskite solar cells.

Education

2007
- B.Sc., Physics, University of Iceland.
2008
- Summer school, Computational Nanoscience, University of Jyväskylä, Finland.
- Exchange student, Nordplus, University of Helsinki, Finland.
2009
- M.Sc., Physics, University of Iceland.
  Quantum Transport in the Presence of a Local Time-Periodic Potential in a Magnetic Field
- Summer school, Physics of Functional Micro & Nanostructures, University of Hamburg, Germany.
2013
- Ph.D., Computational Physics, University of Iceland & Reyjavik University, Joint degree.
  Variations on Transport for a Quantum Flute

Positions

2017-current
- Postdoctoral Fellow, Vacuum Electronics, Reykjavik University.
  Molecular Dynamics simulations on vaccum nanodiodes with field and/or thermionic emission.
2013-2017
- Postdoctoral Fellow, Vacuum Electronics, Reykjavik University.
  Field emission in microscopic diodes studied using Molecular Dynamics simulations.
2015-2017
- Research Assistant, Charge Transport Perovskite Solar Cell, Reykjavik University.
  Charge transport in perovskite solar cells investigated using Molecular Dynamics simulations.
2017-Present
- Postdoctoral Fellow, Vacuum Electronics, Reykjavik University.
  Molecular Dynamics simulations of Vacuum microdiodes.