Long time research and teaching experience in condensed matter physics, statistics, applied maths, computer sciences.
Research Interests
Lead/Senior Research Scientist, Theoretical physics of condensed matter.
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- From microscopic description of strongly correlated Cu-O chain fragments to their statistical ensemble in YBCO-type of high-Tc superconducting (HTCS) materials: Cu-O deficient planes as "soft matter" objects within condensed matter. The problem of oxygen ordering. Statistical simulations and contemporary programming methods.
- Interplay of magnetic ordering and crystalline electric field effects in rare-earth and uranium compounds: Applications to monopnictides; Formation of the quadrupolar ordering in CeB6, URu2Si2.
- Computer simulations of percolation processes: from fractal growth to Web documents clustering.
- Surface physics: Step dynamics.
- Diffuse x-ray and neutron scattering from nano-structures: Applications to the problems of surface structures, polytype materials, lipid membranes stacking.
- Unconventional low-dimensional magnetism: Long-periodic structures, fractal charge topological excitations, low-temperature thermodynamics. Strongly correlated fermions. Quantum antiferromagnetism
- Wetting phenomena in low-dimensional systems.
Research Interests
Research Scientist, Physics of condensed matter.
- Commensurate-incommensurate phase transitions and phase diagrams of two-dymensional systems.
- Complex modulated structures: Development of the algorithm (computational and analytical) for finding out the ground states and low- and high-temperature thermodynamics of complex modulated structures with using the linear programming method.
- Dislocations in semiconducting materials: Application to ZnS.
- Low-dimensional quantum models. Phase transitions in low dimensional systems. Hubbard model.
On leave from the Landau Institute: other Research Centers and Universities
11/98-01/99, 05/99-07/99
Visiting Research Scientist, Condensed matter physics/ Statistical physics.
- Web documents clustering. Percolation and statistical analysis of Web documents ensembles, more...
- EuB6, explained the origin of the magnetic anisotropy switching from easy diagonal to easy axis.
- Yb4As3, 3-dimensional compound with 1-dimensional Yb3+ magnetic chains parallel to <111> with no interactions between the chains. The weak magnetic dipolar interaction as a mechanism for breaking rotational magnetic symmetry, and opening a gap in applied magnetic field. Recommendations for specific heat, magneto-elastic, and other experiments.
09/90-02/91, 12/92–03/93, 01/96-06/96
Visting Research Scientist, Physics of condensed matter.
- Development of the statistical approach to the ensemble of CuO chain fragments which form the deficient planes of the YBCO-type high-temperature superconductors. Diffuse scattering due to CuO chain fragments.
- Helimagnetism, long-periodic magnetic structures, staircase of phase transitions. Helimagnetism and fractional charge vortices.
- Competition of the quadrupolar and magnetic orderings ordering in CeB6. Recommendations for neutron scattering/synchrotron experiments on CeB6 monocrystals, more...
09/92-11/92, 09/93-12/93, 01/95-12/95,
08/96-03/97, 09/97-12/97
Visiting Professor, Statistical physics.
- Monte Carlo simulations for the ensemble of CuO chain fragments which form the basal planes of high-temperature Rare-Earth-BCO superconductors. Click here for the electronic version of the paper.
- Numerical transfer-matrix methods for the 2-d statistical problem and its 1-d quantum counterpart.
- Low-dymensional antiferri-magnetic chains. Application of analytical methods in combination with symbolic computer and numerical computer methods. The electronic version of the paper consists of two parts, here is the first, and here is the second.
- Revealed, that NdB6 should be classified as a strong spin-quadrupolar coupling compound. Spin-excitation branches have been computed. Observed a unusual suppression of some branches in the spin-response function, more...
08/94-09/94
Visiting Research Scientist, Physics of condensed matter.
- Quasi-one-dimensional nano-structures, transfer-matrix approach. Recommendations for their observation by diffuse X-ray and neutron scattering methods. The ideas can be probably adapted to some (en)decoding problems of computer sciences. Later, you can look here at the results obtained with a Demo "nano"-program.
- Unusual low-temperature magnetic structures in doped YBCO superconductors has been predicted. Tiny details of magnetic ordering can be only available in microscopic (neutron) experiments, more...
03/93-06/93
Visiting Research Scientist, Condensed matter physics.
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Collaborated with the members of condensed matter and soft matter/biological
physics groups, who performed inelastic neutron scattering experiments.
Would like to mention J.Teixeira and V.Gordely.
I was invited at the LLB by Jean Rossat-Mignod, with whom I had to discuss so many things during my staying at Saclay... In July-93 he visited my home in Chernogolovka. Nobody could imagine that the conference in San-Diego in August-93 would be his last... That's too bad that he died...
09/94-12/94
Awarded by the JSPS Fellowship.
- Selection of a proper theoretical prerequisite and relevant interactions for a description of the quadrupolar phase of CeB6.
02/91-04/91, 04/92-06/92
Visiting Professor,Statistical Physics
- Lectures on the Kosterlitz-Thouless phase transitions.
- Microscopic properties of CuO chains, the constituents of oxygen deficient planes in HTSC. In cooperation with Finn Ravndal, supervised Haarek Haugerud whose PhD thesis included many results of our collaboration.
Teaching, teaching, teaching, teaching, teaching, teaching, teaching...
1977-1990
Physics Department, division of Theoretical Physics.
At the undergraduate level:
At the graduate level:
Lectures on strongly correlated fermions and selected problems of high temperature superconductivity.
01/98-05/98
Lecture courses "C/C++ and Visual Basic. Their applications to the real-world projects".
More about Demo programs addressed to students.
Organization of Meetings, Seminars
Co-ordinators from the Russian side: I am.
Co-ordinators from the German side:
Prof. J.Zittartz, University of Cologne, and Prof. W.Selke, University of Aachen.
1988, Aachen-Juelich
1989, Moscow
1990, 1993, 1995, 1997, Bad Honnef
1991, 1994, 1996, Chernogolovka
Research Grants
Principal investigator and co-ordinator of the project Quadrupolar and unusual magnetic ordering in rare-earth and uranium compounds .
Member of the international (Germany-Nietherlands-Russia) research team in the project Simulational physics: construction of a special purpose computer and applications .
Principal investigator and co-ordinator of the project Theoretical investigation of oxygen deficient planes and their roles in high-temperature antiferromagnetism and superconductivity .
Key investigator responsible for a theoretical part of the project Oxygen Ordering in YBa2Cu3O(6+x)
Education and Scientific Degrees
Habilitation doctoral degree in Theoretical Physics of Condensed Matter.
Thesis: Phase transitions in systems with competing interactions
Degree in Theoretical Physics
Thesis: Complex modulated structures.
Publications: Available are the following possibilities: a complete list of publications, and a list of selected publications.
Experience in Informational Technogies and corresponding skills
- Perl, I like this interpreter language for its perfect abilities to make pattern matching, efficiently work with associative arrays, and a great help when searching at the Internet. I do not think, however, that OO features of Perl are its best.
- C, so fundamental, that for me, it is like an iceberg, whose tip I am only familiar with...
- C++, I believe, now it is out of any competition, if an IT project is really huge. The best set of OO features.
- Visual Basic, a great toy due to Microsoft. I like it, and never have had problems with it. It's fantastically efficient with fast applications.
- SAS, one of the statistical monsters. Until now it is the most popular, although I am familiar with other tools, more efficient and friendly...
- Fortran, old friend, still exploited in scientific projects. Most likely, due to traditions.
- Mathematica of Steven Wolfram looks like a monster now, but a friendly monster. Sometimes I have problems with Mathematica, but they always appear due to my incompetence.
- SQL, and its versions and dialects: a perfect monopolist in database applications.
- HTML, JavaScript. So, this web page was produced with their help...
numerical methods, algorithms: