Personal data:
Surname: Vasile
First name: Gabriel
Born: 3rd June 1975, Livezi, Romania
Nationality: Romanian
Marital status: married
Profession: Dr. rer. nat. (Physicist), Master of Science (Physicist), Physical Engineer
Working fields: Quantum Hall Effect (QHE) and QH Systems, Two-dimensional
Electron Systems (2DES), LEED-Auger Surface Analysis, Many-Body Theory (Hartree
and Hartree-Fock Formalisms), Spectroscopy, Lasers, Optics.
Present address:
Science Institute
Dunhaga 3
IS - 107 Reykjavik
Iceland
Fax: + 354 552 8911
Office phone: + 354 525 5109
Laboratory phone: + 354 525 4905
Clean room phone: + 354 525 4740
Cell phone: + 354 695 7461
E-mail: vasile@raunvis.hi.is
Web site: http://www.raunvis.hi.is/~vasile/
Education:
October 2006 - September 2007: Technical University "Carolo Wilhelmina"
Braunschweig, Institute of Applied Physics, Ph. D. Student
December 2005 - September 2006: Technical University "Carolo Wilhelmina"
Braunschweig, Institute of Applied Physics, DAAD (Deutscher
Akademischer Austausch Dienst) - Stipendiary
Ph. D. project - Measurements and modelling of the dynamics of optically
and electrically induced dissipation in Quantum Hall systems
Supervisor: Prof. Dr. Georg Nachtwei
March 2005 - November 2005: Max Planck Institute for Solid State Research
- Stuttgart, von Klitzing Department, Max Planck Society- Stipendiary
Ph. D. project - Dynamic conductivity and THz absorption in the Quantum Hall
regime
Supervisor: Prof. Dr. Rolf R. Gerhardts
September 2003 - February 2005: Technical University "Carolo Wilhelmina"
Braunschweig, Institut für Technische Physik, Ph. D. Student
Ph. D. project - Measurements and modelling of the dynamics of optically
and electrically induced dissipation in Quantum Hall systems
Supervisor: Prof. Dr. Georg Nachtwei
September 2000 - August 2002: University of Iceland, Science Institute, Master of Science
in Physics
Master thesis - Magnetization of interacting confined two-dimensional
electron systems
Supervisors: Prof. Dr. Vidar Gudmundsson and Dr. Andrei Manolescu
October 1995 - June 2000: University of Bucharest, Faculty of Physics,
Physical Engineer
Diploma thesis - Laser telemetry
Supervisor: Prof. Dr. Iancu Iova
September 1989 - July 1993: Military High - School "Tudor Vladimirescu", Craiova,
School Graduate
Scientific activity:
The National Science Symposium: poster -
"Real-time measurements of the optically and electrically induced dissipation in QH-devices", Gabriel Vasile, Christian
Stellmach, Fathi Gouider, Günter Hein, and Georg Nachtwei,
Reykjavik, Iceland, 14th - 15th March 2008.
The 15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors HCIS-15: poster -
"Nonequilibrium Laser Excitation of Terahertz-Quantum-Hall-Detectors", Gabriel Vasile, Christian
Stellmach, Martin Koch, Günter Hein, and Georg Nachtwei,
Tokyo, Japan, 23th - 27th July 2007.
The 28th International Conference on the Physics of Semiconductors ICPS-28: posters -
"Calculations of the THz Conductivity of Quantum Hall Systems", Gabriel Vasile, Christian
Stellmach, Rolf R. Gerhardts, and Georg Nachtwei, and "Fast and tunable photodetectors for THz
radiation based on the Landau quantization of HgTe/HgCdTe heterojunctions", Rene Bonk, Christian
Stellmach, Yuri. B. Vasilyev, Charles R. Becker, Günter Hein, Gabriel Vasile, and Georg Nachtwei,
Vienna, 24th - 28th July 2006.
The Conference on Precision Electromagnetic Measurements CPEM-2006: poster -
"Experimental and Numerical Investigations of the THz Photoconductivity of QH Systems with Corbino
geometry", Gabriel Vasile, Christian Stellmach, Yuri B. Vasilyev, Alexander Hirsch, Günter Hein,
Rolf R. Gerhardts, and Georg Nachtwei, Turin, 9th-14th July 2006.
The German Physical Society DPG-spring meeting of the Condensed Matter Division and the European
Physical Society EPS-21 General Conference of the Condensed Matter Division: posters -
"Experimental and Numerical Investigation of the Terahertz Conductivity of QH Systems", Gabriel
Vasile, Christian Stellmach, Yuri B. Vasilyev, Alexander Hirsch, Günter Hein, Rolf R. Gerhardts, and
Georg Nachtwei, and "Characterization of AlGaN/GaN-heterostructures by means of magnetotransport
measurements in high magnetic fields", Kathrin Knese, Bulent E. Sagol, Nicole Riedel, Uwe Rossow,
Gabriel Vasile, Christian Stellmach, and Georg Nachtwei, Dresden, 27th - 31st March 2006.
The 14th International Conference on Nonequilibrum Carrier Dynamics in Semiconductors HCIS-14:
poster -"Measurements of the electrical excitation of QH-devices in the real time domain
", Gabriel Vasile, Christian Stellmach, Günter Hein, and Georg Nachtwei, Chicago, 24th - 29th July
2005.
The Kolloquium zum DFG-Schwerpunktprogramm "Quanten-Hall-Systeme": poster - "Electrical and
optical excitation of Quantum Hall Systems: New experiments and Model", Gabriel Vasile, Christian
Stellmach, Georg Nachtwei, and Günter Hein, Bad Honnef, 24th - 25th January 2005.
The International Symposium "Quantum Hall Systems and Quantum Materials
QHSQM 2004": poster - "Two - level model for electrical and optical
excitation and relaxation in QH Systems", Gabriel Vasile, Christian
Stellmach, and Georg Nachtwei, Hamburg, 22nd - 24th September 2004.
The 15th International Conference on High Magnetic Fields in Semiconductor
Physics: poster - "Orbital and Spin Magnetization of a confined electronic
system in the transition between a quantum dot and a ring", Gabriel Vasile,
Vidar Gudmundsson, and Andrei Manolescu, Oxford, 5th - 9th August 2002.
The 10th Icelandic Physical Conference, Edlisfraedi a Islandi X, Radstefnurit islenska
edlisfraedifelagsins: poster - "Deformed Quantum Dots", Gabriel
Vasile and Vidar Gudmundsson, Reykjavik, 17th - 18th November 2001.
The 11th Jyvälskylä International Summer School, Finland:
Computational Many - Body Physics and Quantum Monte Carlo Methods for Many -
Body Lattice, Jyvälskylä, 5th - 18th August 2001.
Research projects:
March 2008 - February 2011: High-frequency and time-dependent transport in 1D wires fabricated in GaAs/AlGaAs 2DEGs
(supervised by Dr. Snorri Ingvarsson)
December 2005 - September 2007: Measurements and modelling of the dynamics of
optically and electrically induced dissipation in Quantum Hall systems
(supervised by Prof. Dr. Georg
Nachtwei)
March 2005 - November 2005: Dynamic Conductivity and THz absorption in the
Quantum Hall regime
(supervised by Prof. Dr. Rolf R. Gerhardts)
September 2003 - February 2005: Measurements and modelling of the dynamics of
optically and electrically induced dissipation in Quantum Hall systems
(supervised by Prof. Dr. Georg
Nachtwei)
November 2002 - August 2003: Surface Analysis by LEED - Auger Techniques
(supervised by Dr. Mihai Varlam)
September 2000 - August 2002: Magnetization of interacting confined
two - dimensional electron systems within mean field theory (supervised by
Prof. Dr. Vidar Gudmundsson and
Dr. Andrei Manolescu)
Publications:
Double-peak structure of the nonresonant photoresponse of Terahertz quantum Hall detectors
G. Nachtwei, F. Gouider, Ch. Stellmach, G.Vasile, Yu. B. Vasilyev, G. Hein, and R. R. Gerhardts, Phys. Rev. B 78, 174305 (2008).
Optically and electrically induced dissipation in quantum Hall systems
G. Nachtwei, Ch. Stellmach, G.Vasile, and G. Hein, Phys. Stat. Sol. (b) 245, issue no. 2, 331 (2008).
Time- and spectrally resolved terahertz photoconductivity of quantum Hall systems
Ch. Stellmach, G.Vasile, A. Hirsch, R. Bonk, Yu. B. Vasilyev, G. Hein, C. R. Becker, and G. Nachtwei,
Phys. Rev. B 76, 035341 (2007).
Measurements of the electrical excitation of quantum Hall devices in the real-time domain
G.Vasile, Ch. Stellmach, G. Hein, and G. Nachtwei,
Semicond. Sci. Technol. 21, 1714 (2006).
Calculations of the THz Conductivity of Quantum Hall Systems
G.Vasile, Ch. Stellmach, R. R. Gerhardts, and G. Nachtwei,
Proceedings of the 28th Conference on the Physics of Semiconductors (ICPS-28) July 24-28, 2006, Vienna, Austria, American Institute of Physics 893, 649, Editors: W. Jantsch and F. Schaffer, New York 2007.
Fast and Tunable Photodetectors for THz Radiation based on the Landau Quantization of HgTe/HgCdTe
Heterojunctions
R. Bonk, Ch. Stellmach, Yu. B. Vasilyev, C. R. Backer, G. Hein, G.Vasile, and G. Nachtwei,
Proceedings of the 28th Conference on the Physics of Semiconductors (ICPS-28) July 24-28, 2006, Vienna, Austria, American Institute of Physics 893, 491, Editors: W. Jantsch and F. Schaffer, New York 2007.
Experimental and Numerical Investigations of the THz Photoconductivity of QH Systems with Corbino
geometry
G. Vasile, Ch. Stellmach, Yu. B. Vasilyev, A. Hirsch, G. Hein, R. R. Gerhardts, and G. Nachtwei,
Proceedings of the CPEM-2006 Conference, Turin (2006).
Measurements of the electrical excitation of QH-devices in the real-time domain
G.Vasile, Ch. Stellmach, G. Hein, and G. Nachtwei,
Proceedings of the 14th International Conference on Nonequilibrum Carrier Dynamics in Semiconductors (HCIS-14)
July 25-29, 2005, Chicago, U.S.A., Springer Proceedings in Physics (SPP) 110, 95, Editors: M. Saraniti
and U. Ravaioli, Springer-Verlag Berlin Heidelberg 2006.
Two-level model for electrical and optical excitation and relaxation in QH systems
G.Vasile, Ch. Stellmach, and G. Nachtwei,
Proceedings of the QHSQM-2004 Conference, Hamburg (2004).
Orbital and Spin Magnetization of a confined electronic system in the transition between a quantum
dot and a ring
G. Vasile, V. Gudmundsson, and A. Manolescu,
Physics of Semiconductors 2002, Proceedings of the 15th International Conference on High Magnetic
Fields in Semiconductor Physics, Oxford, 5th - 9th August 2002, Institute of Physics
Conference Series 171, A - 11, Editors: A. R. Long and J. H. Davies, IOP (Bristol - Philadelphia)
(2003).
Magnetization of interacting confined two-dimensional electron systems
G. Vasile, M. Sc. Thesis, University of Iceland, Faculty of Natural Sciences, Department of Physics,
RH-18-2002, Reykjavik (2002).
Deformed quantum dots
G. Vasile and V. Gudmundsson,
Proceedings of the 10th Icelandic Physical Conference, Edlisfraedi a Islandi X, Radstefnurit islenska
edlisfraedifelagsins, Reykjavik (2001).