NANO
Nanophysics Center
Nanophysics Center
In the nanophysics group, we do experimental and theoretical research on various systems from nanometers to micron scale. Our experimental work includes the fabrication, growth, and characterization of some types of nanostructures, like arrays of silicon nanowires, thin films, and nanoparticles. On the theoretical side, we perform calculations and computer simulations of vacuum electronic devices, perovskite-based solar cells, spin and charge transport and excitons in semiconductor heterostructures, and in particular in core-shell nanowires. We also work with models of topological insulators.
Faculty
- 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
Research staff and close collaborators
Publication
- Design of Nanoscale Quantum Interconnects Aided by Conditional Generative Adversarial Networks
Amanda Teodora Preda, Calin-Andrei Pantis-Simut, Mihai Marciu, Dragos-Victor Anghel, Alaa Allosh, Lucian Ion, Andrei Manolescu, George Alexandru Nemnes
Applied Sciences (10.3390/app14031111)
https://doi.org/10.3390/app14031111 - Efficient method for analyzing magneto-oscillations of two-dimensional spin-orbit coupled electron gases
Hamed Gramizadeh, Denis R. Candido, Andrei Manolescu, J. Carlos Egues, Sigurdur I. Erlingsson
Physical Review B (10.1103/PhysRevB.109.115303)
https://doi.org/10.1103/PhysRevB.109.115303 - Magneto-optical properties of a quantum dot array interacting with a far-infrared photon mode of a cylindrical cavity
Vidar Gudmundsson, Vram Mughnetsyan, Hsi-Sheng Goan, Jeng-Da Chai, Nzar Rauf Abdullah, Chi-Shung Tang, Valeriu Moldoveanu, Andrei Manolescu
Physical Review B (10.1103/PhysRevB.109.235306)
https://doi.org/10.1103/PhysRevB.109.235306 - Optimizing SiGe–SiO2 Visible–Short‐Wave Infrared Photoresponse by Modulating Interplay Between Strain and Defects Through Annealing
Muhammad Taha Sultan, Ionel Stavarache, Andrei Manolescu, Unnar Bjarni Arnalds, Valentin Serban Teodorescu, Halldor Gudfinnur Svavarsson, Snorri Ingvarsson, Magdalena Lidia Ciurea
Advanced Photonics Research (10.1002/adpr.202300316)
https://doi.org/10.1002/adpr.202300316 - Anisotropic transport properties in prismatic topological insulator nanowires
Hallmann Ó. Gestsson, Andrei Manolescu, Jens H. Bardarson, Sigurdur I. Erlingsson
Physical Review B (10.1103/PhysRevB.110.115307)
https://doi.org/10.1103/PhysRevB.110.115307 - Optimizing photocurrent intensity in layered SiGe heterostructures
M T Sultan, M L Ciurea, I Stavarache, K A Thórarinsdóttir, U B Arnalds, V Teodorescu, A Manolescu, S Ingvarsson, H G Svavarsson
Semiconductor Science and Technology (10.1088/1361-6641/ad70d4)
https://doi.org/10.1088/1361-6641/ad70d4 - Tuning of paramagnetic and diamagnetic cavity photon excitations in a square array of quantum dots in a magnetic field
Vidar Gudmundsson, Vram Mughnetsyan, Hsi-Sheng Goan, Jeng-Da Chai, Nzar Rauf Abdullah, Chi-Shung Tang, Valeriu Moldoveanu, Andrei Manolescu
Physical Review B (10.1103/PhysRevB.110.205301)
https://doi.org/10.1103/PhysRevB.110.205301 - Simulation of Short Pulse Photoemission in a Microdiode With Implications for Optimal Beam Brightness
Hákon Örn Árnason, Kristinn Torfason, Andrei Manolescu, Ágúst Valfells
IEEE Transactions on Electron Devices (10.1109/TED.2024.3351096)
https://doi.org/10.1109/TED.2024.3351096 - Collective dynamics of Ca atoms encapsulated in C60 endohedral fullerenes
Mihaela Cosinschi, Amanda T. Preda, C.-A. Pantis-Simut, N. Filipoiu, I. Ghitiu, M. A. Dulea, L. Ion, A. Manolescu, G. A. Nemnes
Physical Chemistry Chemical Physics (10.1039/D4CP01048E)
https://doi.org/10.1039/D4CP01048E - Efficient method for analyzing magneto-oscillations of two-dimensional spin-orbit coupled electron gases
Gramizadeh, Hamed, Candido, Denis R., Manolescu, Andrei, Egues, J. Carlos, Erlingsson, Sigurdur I.
Physical Review B (10.1103/PHYSREVB.109.115303)
https://publons.com/wos-op/publon/68413405/ - Ultra Responsive NO2 silicon nanowires gas sensor
Brophy, Rachel Elizabeth, Junker, Benjamin, Fakhri, Elham Aghabalei, Arnason, Hakon Orn, Svavarsson, Halldor Guofinnur, Weimar, Udo, Barsan, Nicolae, Manolescu, Andrei
Sensors and Actuators B: Chemical (10.1016/J.SNB.2024.135648)
https://publons.com/wos-op/publon/68100551/
Funding
EEA Financial Mechanism
Icelandic Research Fund
Technology Development Fund
Landsvirkjun Energy Research Fund
Air Force Office of Scientific Research
Research Funds of Reykjavik University
Reykjavík University Molecular Dynamics code for Electron Emission and Dynamics (RUMDEED)
We have developed a Molecular Dynamics code designed to simulate vacuum diodes. This code supports simulations of:
- Field emission with planar and prolate spheroidal geometries
- Thermal-field emission with planar geometry
- Photoemission with planar geometry
Detailed descriptions of the code and its results are available in several published articles. The code, along with its manual, is hosted on Github under an open-source license.
For questions or feedback, please contact Ágúst Valfels or Kristinn Torfason.
