1. Overview of the research of nanosystems at BLTP

2. Theory of Condensed Matter and New Materials Leaders: V. A
Theory of Condensed Matter and New Materials Leaders:  V.A. Osipov and J. Brankov
Project:
Physical properties of complex materials and nanostructures
Sector N16:
Nanostructures and nanoscale phenomena

3. Main topics: carbon nanosystems atomic clusters quantum dots
layered structures
electron and spin transport
fractal systems

4. Carbon nanosystems

5. Electronic structure Carbon nanocones

6. The model
Dirac equation on a curved manifold
Two sorts of spinors
geometry
gauge fields

7. Electronic structure Carbon nanotubes (closed)
metallic
semiconducting
Far from the cap (top), near (middle), in the cap (bottom)

8. Electronic structure Spherical and spheroidal fullerenesB
Zeeman
splitting
The first electronic level
The second electronic level

9. Electronic structure two-walled nanotubes and fullerenes
This poster has been presented on summer’s PAC meeting
in 2009

10. graphite carbon nanotubes few-layer graphene
Field emission
graphite
carbon nanotubes
few-layer graphene

11. EFFECT OF BAND STRUCTURE ON FIELD EMISSION
Katkov V.L., Osipov V.A.: J. Phys.: Cond. Matt. 20 (2008)
GRAPHITE
NANOTUBES 2D 3D
Both cases were
reduced to 1D problem.
Field emission law for graphite in two orientations.
Analytical
expressions
explain numerical
calculations.

12. V.L. Katkov and V.A. Osipov, JETP Letters 90, p. 304 (2009)
Energy distribution of field emitted electrons from carbon nanosheets: manifestation of the quantum size effect
number of layers N
Quantum
Size
Effect
quantity of emitted electrons vs
energy of emitted electrons P(E)
(can be experimentally measured)
QSE
FEED
FLG
V.L. Katkov and V.A. Osipov, JETP Letters 90, p. 304 (2009)

13. Applications
Samsung demonstrates world’s first carbon-nanotube based display (2008)
Researchers at Stanford University,
Cornell University and Purdue
University in the US have produced
a carbon nanotube transistor that
has better properties than silicon
transistors of an equivalent size.
The device uses zirconium oxide rather
than silicon dioxide, which has a lower
dielectric constant, as the gate insulator
(2006).
Engineers from Stanford University presented a chip made of carbon nanotubes (2009).

14. The first JINR prize in theoretical physics, 2007
Collaboration
V. Osipov, E. Kochetov, D. Kolesnikov,
V. Katkov (JINR);
M. Pudlak, R. Pincak (Slovakia)
The first JINR prize in theoretical physics, 2007

15. metal clusters: orbital magnetic modes Scissors mode Twist mode
V.O. Nesterenko, W. Kleinig, F.F. de Souza Cruz and N. Lo Iudice,
“Orbital magnetic dipole mode in deformed clusters: a fully microscopical analysis”,
Phys. Rev. Lett. , 83, 57 (1999)
Twist mode
V.O. Nesterenko, J.R. Marinelli, F.F. de Souza Cruz, W. Kleinig and P.-G. Reinhard,
“Twist model in spherical Alkali Metal Clusters”,
Phys. Rev. Lett. , 85, 3141 (2000)
- Universal collective modes (nuclei, atomic clusters, quantum dots, BEC, …)
- SM and TM in clusters: oscillations of valence electrons against ions
V.O. Nesterenko, "Metal clusters as a new application field of nuclear-physics ideas and methods", Sov. J. Part. Nucl., (1992)
first review on metal clusters 15

16. Pump-probe two-photon spectroscopy of metal clusters
jellium TDLDA
Endurant quadrupole oscillations
result in PES satellites:
Photoelectron spectrum (PES)
Measuring 1eh energy and lifetime
V.O. Nesterenko et al, JPB, (2006)
V.O. Nesterenko et al, PRA, 73, (R) (2006)
V.O. Nesterenko, P.-G. Reinhard, W. Kleinig, in book "Atomic and Molecular Cluster Research", Nova Science Publisher, NY, 2006 16

17. of individual atoms and Bose-Einstein condensates
Complete irreversible adiabatic transport
of individual atoms and Bose-Einstein condensates
in multi-well traps
Adiabatic
methods
2-level system
2-well system
|1>
|2>
pump
- Analogy between multi-well and multi-level systems
- Adiabatic population transfer schemes from quantum optics
(STIRAP, Landau-Zener, Rosen-Zener)
- Development of effective transport protocols
which work even under strong nonlinearity (!!!)
caused by interaction between the atoms
- Universality (attractive/repulsive interaction, left-right transport)
V.O. Nesterenko, A.N. Novikov, F.F. de Souza Cruz, and E.L. Lapolli, Laser Phys. 19, (2009).
V.O. Nesterenko, A.N. Novikov, A.Yu. Cherny, F.F. Souza Cruz, and E. Suraud, JPB 42, (2009).
V.O. Nesterenko, A.N. Novikov, and E. Suraud, Laser Phys. 20, 1149 (2010). 17

18. Magnetic Field and Symmetry Effects in Small Quantum Dots
R. G. Nazmitdinov, Physics of Particles and Nuclei, 2009, Vol. 40, No. 1, pp. 71–92.
The magnetic dependence of the additional energy Δμ in two-electron QDs. The solid grey lines display the experimental spacing ΔVg as a function of B.

19. Layered structures (Bi2Sr2CanCun+1O2n+6-d)
The oral talk on PAC meeting

20. Fractal systems
The oral talk will be presented tomorrow
by Dr Anitas

22. Thank you for your Attention