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Scanning Probe Microscopes (SPM)

Scanning probe microscopy is a branch of microscopy that creates images of surfaces using a physical probe that scans a specimen. SPM covers several related technologies for imaging and measuring surfaces on a fine scale, down to the level of molecules and atoms. Today, it is still one of the most diffused techniques for surface characterisation. An image of the surface is obtained by mechanical moving the probe in a raster scan of the specimen, line by line, and recording the probe-surface interaction as a function of position. SPM was founded with the invention of the scanning tunneling microscope in 1981. Scanning probe microscopes allow scientists to image, characterize and even manipulate material structures at exceedingly small scales including features of atomic proportions.

Probe Techniques

The three most applied scanning probe techniques are:

Scanning Tunneling Microscopy/Spectroscopy (STM/STS) measures a weak electrical current flowing between tip and sample as they are held a very distance apart.

Atomic Force Microscopy (AFM) measures the interaction force between the tip and surface. The tip may be dragged across the surface, or may vibrate as it moves. The interaction force will depend on the nature of the sample, the probe tip and the distance between them.

Scanning Near-Field Optical Microscopy (SNOM) scans a very small light source very close to the sample. Detection of this light energy forms the image. SNOM can provide resolution below that of the conventional light microscope down to 10Å.

Group Members

Prof. Dr. Vladimir I. PANOV

Position:	Department Chairman. Head of the SPM Laboratory
Education:
Address:	MSU, Faculty of Physics, Chair of Quantum Electronics, 1, building 2, GSP-2, Leninskiye Gory, Moscow, 119991, Russian Federation
Tel. / Fax:	+7(495)939-22-36 / +7(495)939-11-04
Email:	panov@spmlab.phys.msu.ru
Office:	411
Personal URL:
Academic Activities:

Areas of Research Activity:

The influence of resonant tunneling on the imaging of impurity atoms and defects on semiconductor surfaces was investigated by low temperature STM/STS.
New nonequilibrium interaction effects of impurity atoms on semiconductor surface have been experimentally studied by means of STM/STS methods and theoretically analyzed using a self-consistent approach based on the Keldysh formalism.
Low-temperature method of identification of individual impurity atoms on a semiconductor surface by precision analyzing of local tunneling conductivity curves near impurities was developed.

Dr. Andrey I. ORESHKIN

Position:	Senior Researcher
Education:	Ph.D., Physics, Lomonosov Moscow State University, 1997 M.S., Physics, Lomonosov Moscow State University, 1992
Address:	MSU, Faculty of Physics, Chair of Quantum Electronics, 1, building 2, GSP-2, Leninskiye Gory, Moscow, 119991, Russian Federation
Tel. / Fax:	+7(495)939-25-02 / +7(495)939-11-04
Email:	oreshkin@spmlab.ru
Office:	405, 106
Personal URL:
Academic Activities:

Areas of Research Activity:

UHV STM & Metrology....

Dr. Natalia S. MASLOVA

Position:	Assistant professor
Education:
Address:	MSU, Faculty of Physics, Chair of Quantum Electronics, 1, building 2, GSP-2, Leninskiye Gory, Moscow, 119991, Russian Federation
Tel. / Fax:	+7(495)939-25-02 / +7(495)939-11-04
Email:	nsmaslova@gmail.com
Office:	405
Personal URL:
Academic Activities:

Areas of Research Activity:

Theory....

Dr. Sergey V. SAVINOV

Position:	Senior Researcher
Education:
Address:	MSU, Faculty of Physics, Chair of Quantum Electronics, 1, building 2, GSP-2, Leninskiye Gory, Moscow, 119991, Russian Federation
Tel. / Fax:	+7(495)939-25-02 / +7(495)939-11-04
Email:	savinovsv@mail.ru
Office:	405, 106
Personal URL:
Academic Activities:

Areas of Research Activity:

UHV STM & Metrology....

Dr. Dmitriy A. MUZYCHENKO

Position:	Research fellow
Education:	Ph.D., Physics, Lomonosov Moscow State University, 2007 M.S., Physics, Lomonosov Moscow State University, 1999
Address:	MSU, Faculty of Physics, Chair of Quantum Electronics, 1, building 2, GSP-2, Leninskiye Gory, Moscow, 119991, Russian Federation
Tel. / Fax:	+7(495)939-25-02 / +7(495)939-11-04
Email:	mda@spmlab.ru
Office:	404, 405
Personal URL:
Academic Activities:

Areas of Research Activity:

Low Temperature UHV STM/STS on semiconductor and metal surafces:

Spin-Polarized STM/STS of magnetic nanoclusters on metal surfaces:
Numerical methods: Density functional theory (DFT)
Scanning near-field optical microscopy:

Sergey I. ORESHKIN

Position:	Research fellow, Sternberg Astronomical Institute
Education:	M.S., Physics, Lomonosov Moscow State University, 1992
Address:	MSU, Faculty of Physics, Chair of Quantum Electronics, 1, building 2, GSP-2, Leninskiye Gory, Moscow, 119991, Russian Federation
Tel. / Fax:	+7(495)939-25-02 / +7(495)939-11-04
Email:	soreshkin@spmlab.ru
Office:	405, 106
Personal URL:
Academic Activities:

Areas of Research Activity:

Low Temperature UHV STM/STS on semiconductor and metal surafces:

Gravitational wave experiments:

Visiting fellow

Dr. Vladimir V. GUBERNOV

Position:	Research fellow, P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Education:	Candidate of phys.-math. sciences acknowledged by VAK, 2006 PhD in mathematics University of New South Wales, 2003 M.S., Physics, Lomonosov Moscow State University, 1999
Address:	I.E. Tamm Theory Department P.N. Lebedev Physical Institute Russian Academy of Sciences 119991 Moscow Russia Leninskii prospect, 53
Tel. / Fax:	+7(495)132-69-78, +7(495)939-25-02, / +7(495)135-85-33
Email:	vvg@spmlab.ru
Office:	404
Personal URL:	http://spmlab.phys.msu.su/~vlad
Academic Activities:

Areas of Research Activity:

Nonlinear waves:
Atomic physics: Atomic optics, atom cooling and trapping, interactions of atoms in external field, Bose-Einstein condensate.
Chaotic dynamics: Chaos in radiophysics, chaotic dynamics of nonlinear waves.
Biophysics: Turing and non-Turing mechanisms of pattern formation; modeling of self-organization in biological and chemical systems; tumor growth.
Combustion waves: Instabilities in combustion, combustion waves and pattern formation in premixed and diffusion flames.
Numerical methods: Stiff differential equations, compound matrix method, geometrical integrators, PDEs.

Postgraduate Students

Vladimir N. MANTSEVICH

Position:	PhD student
Education:	M.S., Physics, Lomonosov Moscow State University, 2006
Address:	MSU, Faculty of Physics, Chair of Quantum Electronics, 1, building 2, GSP-2, Leninskiye Gory, Moscow, 119991, Russian Federation
Tel. / Fax:	+7(495)939-25-02 / +7(495)939-11-04
Email:	vmantsev@spmlab.ru
Office:	404, 106
Personal URL:
Academic Activities:

Areas of Research Activity:

STM/STS on semiconductor surfaces.
Low dimensional structures on semiconductor surfaces:

formation
influence on electron density of states

Influence of nonequilibrium interaction effects between impurity atoms on semiconductor surfaces on the local density of surface states.
Tunneling current noise spectra dependence on tunneling contact parameters.
Resonance and non-resonance tunneling through the localized states in tunneling contact.

Theoretical investigations.
Keldysh diagram technique application for nonequilibrium processes in tunneling contact.
Spatial distribution of local density of states on semiconductor surface in the presence of impurities.

Graduate Students

news

M.V. LOMONOSOV
MOSCOW STATE UNIVERSITY,

FACULTY of PHYSICS,
Chair of Quantum Electronics.
E-mail: infospmlab.ru