Presentation

I do research in fundamental quantum physics and semiconductor nanotechnology by studying nanometer-sized semiconductor structures that confine electrons in the quantum dots and quantum wires.

With the help of this research one can create artificial objects whose properties are controlled by quantum mechanical laws. Potentially, such quantum structures important for future spintronics, microelectronics, photonics and quantum informatics, because quantum mechanics in principle offers new solutions and functionality of semiconductor structures and components that are constantly miniaturized and within a few years will have been reduced to nanotechnology with sizes of a few tens of nanometers or less.

Current research

Nanomagnetism in semiconductor quantum structures for applications in spintronics and quantum information technology 

Currently I'm working primarily with the quantum transport of electrons and the Wigner-localization in all-electric spin-polarizers and spin valves. The aim of the project is to theoretically model the corresponding electron states and determine under what conditions the spontaneous local magnetization and demagnetization, crystalline order (magnetic Wigner lattice) etc. may occur. The magnetic states have often exotic nature, and are therefore vital area of research. For example it leads to the spontaneous excitation of a quantum point contact that only electrons of a given spin direction can pass the quantum point contact which can be used for selective spin injection. The phenomenon has principal interest in the new field of semiconductor spin electronics.

Publications

2016

Irina I. Yakimenko, Karl-Fredrik Berggren

Probing dopants in wide semiconductorquantum point contacts

In Journal of Physics

Article in journal

2015

Irina I. iryya88, Karl-Fredrik Berggren

Correlation and random donors effects on electron transport in wide semiconductor quantum point contacts

Conference paper

2014

B Wahlstrand, Iryna Yakymenko, Karl-Fredrik Berggren

Wave transport and statistical properties of an open non-Hermitian quantum dot with parity-time symmetry

In Physical Review E. Statistical, Nonlinear, and Soft Matter Physics

Article in journal

Curriculum vitae

Academic degrees:

PhD Physical and Mathematical Sciences, Bogolyubov Institute for Theoretical Physics, Kiev, Ukraine, 13 June 1991

MS Radiophysics, Kiev State University, 29 June1982

PostDoc:

1993 – 1994 Laboratory of the Organized Molecular Systems, Institute of Molecular Chemistry, CEA CE Saclay, France

Docent:

2005, March 18 Docent in Theoretical Physics, Linköping University, Department of Physics, Chemistry and Biology, IFM

Positions:

2010 – Present Professor in Theoretical Physics, IFM, Linköping University, Sweden

2002 – 2010 University Lecturer, IFM, Linköping University

1999 – 2002 NFR Guest Professor, IFM, Linköping University

1997 – 1999 Researcher, Linköping University

1994 – 1997 Researcher, Bogolyubov Institute for Theoretical Physics, Academy of Sciences of Ukraine, Kiev

1986 – 1994 Junior Researcher, Bogolyubov Institute for Theoretical Physics, Academy of Sciences of Ukraine, Kiev

Awards

Inclusion in 16th, 17th, 18th and 21th Editions «Who's Who in the World» (1999 – 2004), New York, USA

Inclusion in 5th (Millennium) Edition «Who's Who in Science and Engineering» (2000 – 2001), New York, USA

Inclusion in 15th Edition «World Who's Who of Women» (2009), New York, USA

Related research

Co-workers

Bound electron state in a quantum point contact in thecase of shallow confinement potential

Bound electron state in a quantum point contact in the case of shallow confinement potential

Wave function for the electron in a quantum wire forthe scattering state with the lowest energy

Zig-zag configuration for localization of 16 electrons in a quantum wire

Anti-ferromagnetic localization of four electronswithin a quantum wire

Anti-ferromagnetic localization of four electrons within a quantum wire

Wave function for the electron in a quantum wire forthe scattering state with the higher energy

Wave function for the electron in a quantum wire for the scattering state with the higher energy

Wave function for the electron in a quantum wire forthe scattering state with the lowest energy

Wave function for the electron in a quantum wire for the scattering state with the lowest energy