STATE RESEARCH CENTER OF RUSSIAN FEDERATION KARPOV INSTITUTE OF PHYSICAL
CHEMISTRY
LABORATORY OF PHYSICS, CHEMISTRY AND DIAGNOSTICS OF FILMS
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Yuri.Ya.Tomashpolsky , Professor , DSc , head of lab
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Natalya V.Sadovskaya , PhD , leader researcher
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Olga V.Fedoseeva , researcher
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Yulya V.Golikova, reseacher
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Sergey G.Prutchenko , engineer
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Yuri V.Borisov , engineer
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Arina A. Vanina, student
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Alexander D. Losovsky, senior researcher
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Yulya V.Jivareva, student
1. MAIN FIELDS OF SCIENTIFIC RESEARCH
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Preparation, characterization and studies of following materials including
thin films:Semiconducting oxides TiO2-x, SiO2-x, SrTiO3-x, BaTiO3-x.Ferroelectric
complex oxides BaTiO3, PbTiO3, Pb(Ti,Zr)O3, Pb5Ge3O11, (Ba,Sr)TiO3, Al2O3.Superconducting
complex oxides YBa2Cu3O7-x,Bi2Sr2CaCu2O8+x.
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Development of new approaches in characterization of thin layers (secondary
electron emissiometry, X-ray microprobe analysis, scanning electron microscopy,
Auger electron spectromertry).
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Surface segregation of chemical composition stimulated by the temperature,
irradiation, pressure,atmosphere etc.
Basic publications for the last years:
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Yu.Ya.Tomashpolsky. Film ferroelectrics( in Russian), Moscow, Radio i svyaz
Publishers, 1984
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Yu.Ya.Tomashpolsky, V.I.Kukuev, E.P.Domashevskaya et al. Ferroelectrics,
1992, vol.130,pp.175-180
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Yu.Ya.Tomashpolsky.Ferroelectrics, 1995, vol.167,pp.275-278
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Yu.Ya.Tomashpolsky, I.Ya.Kolotyrkin, E.N.Lubnin, J.Microsc.Spectrosc.Electron.,1985,v.10,
pp.521-537
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Yu.Ya.Tomashpolsky, N.V.Sadovskaya, O.G.Gorshkov Industrial Laboratory.Diagnostica
of Materials, 1999, N11, 23-27.
2. PREPARATION METHODS
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Sol-gel technology
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Thermal discrete evaporation.
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Cathod sputtering.
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Electron beam evaporation.
Basic publications for the last years:
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S.A.Menshikh, L.A.Geraskina, S.G.Prutchenko, L.F.Rybakova, Yu.Ya.Tomashpolsky.
Inoranic materials, 1999, v.35, N5,pp.517-520
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Yu.Ya.Tomashpolsky,L.F.Rybakova, O.V.Fedoseeva, I.A.Noskova, S.A.Menshikh.
Inorgnic materials, 2001, v.37, N 1,pp.65-70
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Yu.Ya.Tomashpolsky, S.A.Menshikh, L.A.Geraskina,S.G.Prutchenko,,L.F.Rybakova
and P.A.Artamonov. Integrated Ferroelecrics,2000,v.29,pp.179-188
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Yu.Ya.Tomashpolsky, P.A.Sheglov,S.A.Menshikh, S.G.Prutchenko and L.F.Rybakovsa.
Integrated Ferroelecrics, 2000, v.29,pp.165-178
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P.A.Sheglov,S.A.Menshikh, L.F.Rybakova and YU.Ya.Tomashpolsky.
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Inorganic materials, 2000, N4,pp.380-384
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P.A.Sheglov, S.A.Menshikh, S.G.Prutchenko, L.F.Rybakova and Yu.Ya.Tomashpolsky.
Inorganic materials, 2000, v.36, N1, pp.67-71.
3. METHODS OF CHARACTERIZATION
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Elemental composition (X-ray microanalysis)
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Phase composition ( X-ray diffractometry)
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Microstructure(transmission and scanning electron microscopy in 20-800
K temperature range)
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Film thickness (by interferometry and by electron microscopy)
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Microhardness.
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Electrophysical properties (ñapacitance and conductivity versus
temperature, histeresis loops etc.)
4. NEW ANALYTICAL SECONDARY ELECTRON EMISSION TECHNIQUES
For last years we are also developing the new analytical methods on the
basis of secondary electron emission in electron microscope. The possibilities
of secondary electron emissiometry are as follows:
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identification of phases in heterogeneous semiconductors, ferroelectrics,
superconductors with space localization of some mm.
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measurements of band gap width, and donor (acceptor) level depth in semiconductors.
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differentiation of donor or acceptor levels in band gap in semiconductors.
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high sensitive estimation of oxygen deficiency in oxide semiconductors
and superconductors (differential sensitivity is up to 0,001-0,00001 mol).
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determination of phase transitions in ferroelectrics and superconductors.
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measurements of parameters of secondary electron-substance interaction:
escape depth, free path, etc.
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study of oxydation kinetics with space localization of some mm in metals
and alloys.
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determination of the reduction degree in oxides with locali- zation of
some mm. etc.
Basic publications for the last years:
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Yu.Ya.Tomashpolsky, M.A.Sevostianov, N.V. Sadovskaya, N.V.Kolganova. J.Microsc.Spectrosc.Electron,
1989, vol.14,pp.213-228
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Yu.Ya.Tomashpolsky.Ferroelectrics, 1995, vol.163 ,P.I,pp.115-122
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Yu.Ya.Tomashpolsky.Ibid, P.II, pp.123-127
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Yu.Ya.Tomashpolsky,N.V.Sadovskaya. Ibid, P.III, pp.129-134
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C.Diaz-Guerra, J.Piqueras, Yu.Ya.Tomashpolsky, N.V.Sadovskaya. Phys. stat.sol.,1996,vol.155,pp.525-539
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Yu.Ya.Tomashpolsky. Analytical Secondary Electron Emissiometry. Microscopy
and Analysis, 2001, i.71,pp.17-23
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Yu,Ya.Tomashpolsky. Analytical Secondary Electron Emissiometry in Scanning
Electron Microscope. Surface (Russian),2001, N6, pp.16-26
5. PARTNERSHIP
We are interested in cooperation on following topics:
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Measurements of Partner's specimens by our standard methods.
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Measurements of Partner's specimens by our new secondary electron emission
techniques (band gap width, electron level depth in band gap due to impurities,
nonstoichiometry, as well as some electrophysical properties of separate
inclusions etc.).
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Discussion of these results. If this information is valuable we could discuss
the possibilities to pass our methods to Partner.
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Measurements of our film specimens (oxide semiconductors, ferroelectrics,
superconductors) by Partner’s techniques and discussion of the results.
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Preparation of specimens by both our's and Partner's methods.
6. CONTACTS
e-mail: tomash@cc.nifhi.ac.ru
fax : (095)975-24-50
tel. 917-17-27
917-50-76 add.1-12