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01-3-1072-2009/2013
Priority:1
Status: In-progress

Theory of Condensed Matter and New Materials


Leaders:     V.A. Osipov
J. Brankov
Scientific leader:         N.M. Plakida

Participating Countries, Institutes and International organizations:
Armenia, Australia, Belarus, Belgium, Brazil, Bulgaria, Canada, Czech Republic, France, Germany, Hungary, India, Ireland, Italy, Moldova, Mongolia, Poland, Romania, Russia, Serbia, Slovak Republic, Slovenia, Spain, Switzerland, Taiwan, Ukraine, USA, Uzbekistan, Vietnam.
Scientific Programme:
Multiparticle models of solids taking into consideration strong electron correlations, electron-lattice, and spin interactions to describe spectra of quasiparticle excitations, phase transitions and kinetic phenomena in solids. In equilibrium and nonequilibrium media with strong correlations such as liquids and nuclear matter, the processes of multifragmentation, clusterization in phase transitions and the influence of surface effects on properties of clusters. In the theory of superconductivity, nonstandard mechanisms of pairing in metal-oxides, the problem of bipolaron stability in a polaron gas environment, the influence of strong electric fields and temperature gradients on elastic, magnetic, and thermal properties of granular superconductors. For a study of mechanisms of phase transitions caused by charge, orbital, and magnetic ordering in magnetic semiconductors and in metals with a large magnetoresistance, experimental data obtained at the Frank Laboratory of Neutron Physics, JINR, by neutron scattering and the µSR method will be used.
    Nonlinear problems in multiparticle theory will be studied by using modern methods of the renormalization group theory, the inverse scattering problem, fractal geometry, and the conformal field theory. The main subjects of the study are integrable systems, equilibrium systems of the statistical mechanics, and dissipative systems far from the thermodynamic equilibrium. The aim of these investigations is to reveal common properties of the multiparticle systems associated with the ideas of self-similarity and universality.
    The microstructure of amorphous state will be studied in the framework of the theoretical model where topological disorder is introduced via arrays of disclination dipoles and loops. The thermal properties of disclinated media are of primary interest. The electronic spectrum of carbon materials, fullerenes and nanotubes, will be examined within the field-theory model adapted to account for nontrivial geometry of these nanostructures. The model of random Josephson junction arrays will be studied and applied to describe high-temperature granular superconductors.
    In the theory of finite quantum systems, local and low-dimensional states of matter obtained in modern experiments will be investigated. In particular, properties of quasiparticles in mesoscopic systems and the Bose-Einstein condensation in atomic traps will be studied.

Expected main results in 2012:
List of Activities
  Activity or experiment Leader
 
  Laboratory and
Responsible person
Main researchers for the Laboratory
1. Physical properties of complex
materials and nanostructures
N.M. Plakida
V.A. Osipov
G. Ropke
 
  BLTP J. Brankov, A.Yu. Cherny,A.V. Chizhov, V. Ilkovich, V.L. Katkov, O.G. Isaeva, W. Kleinig, E.A. Kochetov, D.V. Kolesnikov, S.E. Krasavin, A.L. Kuzemsky, V.A. Moskalenko, V.N. Plechko, J. Schmelzer, V.Yu. Yushankhai + 3 students
2. Mathematical problems
of many-particle systems
V.B. Priezzhev
V.I. Yukalov
 
  L. Karailiev, V.M. Dubovik, V.I. Inozemtsev, T.A. Ivanova, A.E. Patrik, A.M. Povolotsky, V.P. Spiridonov, P.E. Zhidkov + 2 students
  FLNP V.L. Aksenov, A.M. Balagurov

Collaboration
Country or International
Organization
City Institute or Laboratory
Armenia Yerevan ANL
YSU
Australia Melbourne Univ.
Sydney Univ.
Belarus Minsk BSPU
IP NASB
JIMB NASB
Belgium Louvain-la-Neuve UCL
Brazil Brasilia, DF UnB
Sao Paulo, SP USP
Natal, RN IIP UFRN
Bulgaria Sofia IMech BAS
ISSP BAS
SU
Canada Montreal Concordia
Quebec Univ.
Kingston Queen's
London UWO
Czech Republic Rez NPI ASCR
France Paris UPMC
Marseille Univ.
Nice UN
Valenciennes UVHC
Germany Bonn UniBonn
Bremen Univ.
Braunschweig TU
Dortmund TU Dortmund
Darmstadt GSI
Dresden IFW
MPI PkS
TU Dresden
Duisburg UDE
Potsdam AEI
Leipzig Univ.
Magdeburg OvGU
Rostock Univ.
Stuttgart MPI-FKF
Wuppertal Univ.
Hungary Budapest KFKI RMKI
India Mumbai TIFR
Ireland Dublin DIAS
Italy Catania UNICT
Salerno UniSa
Poland Krakow JU
Warsaw IPCh PAS
WUT
Katowice US
Poznan AMU
IMP PAS
Romania Bucharest IFIN-HH
Timi soara UVT
Russia Moscow MIREA
MEPhI
MSU
PFUR
SINP MSU
MI RAS
NRC KI
Belgorod BelSU
Dubna BMSUT MIREA
Gatchina PNPI RAS
Kazan TSHTU
Protvino IHEP
Saratov SSU
St. Petersburg ETU
IPTI RAS
SPbSU
Troitsk HPPI RAS
INR RAS
Voronezh VSU
Moldova Chi sina IAP ASM
Mongolia Ulaanbaatar NUM
Serbia Belgrade INS "VINCA"
Slovak Republic Bratislava IP SAS
Kosice IEP SAS
Slovenia Ljubljana UL
Spain Madrid ICMM
Switzerland Villigen PSI
Zurich ETH
Taiwan Taipei IP AS
Ukraine Kharkov KFTI NASU
Kiev IMP NASU
NTSU
L'viv ICMP NASU
USA Louisville, KY UofL
New York, NY CUNY
Rochester, NY UR
Tallahassee, FL FSU
Uzbekistan Tashkent Assoc."P.-S." PTI
Vietnam Hanoi IMS VAST

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