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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sadreev A. F., Sukhinin Y. V.
Заглавие : Phase transitions in a system of CH3(CH2)(n-1) self-assembled on the Au(111) crystal surface
Место публикации : Phys. Rev. B: AMERICAN PHYSICAL SOC, 1996. - Vol. 54, Is. 24. - P17966-17973. - ISSN 1098-0121, DOI 10.1103/PhysRevB.54.17966
Примечания : Cited References: 44
Предметные рубрики: ORGANIZED MOLECULAR ASSEMBLIES
ALKYL THIOL MONOLAYERS
STRUCTURAL CHARACTERIZATION
DYNAMICS SIMULATION
DEVILS STAIRCASE
GOLD SURFACES
FILMS
MODEL
CHAIN
DIFFRACTION
Аннотация: The n-alkanethiols CH3(CH2)(n-1) on the crystal surface of gold (111) are considered. Couplings between atoms (C, H) of the n-alkanethiols were modelled by the Morse potential, and couplings between the n-alkanethiols and the crystal surface were modelled by 12-3 potentials. Because of symmetry Z(2) of the n-alkanethiols in a tilted state, the system can be reduced to the Ising model on the triangular lattice, the phase diagram of which can be explicitly considered. Depending on the choice of the coupling parameters, the ordered state of the system may form an incommensurate or 2X1 superstructure. The temperatures of the phase transition, equilibrium tilting, twisting, and azimuthal angles are found to depend on the Morse coupling constants.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sukhinin Y. V.
Заглавие : Phase transitions in self-assembled monolayers of alkanethiols containing the polar group
Место публикации : J. Exp. Theor. Phys.: AMER INST PHYSICS, 1998. - Vol. 87, Is. 1. - P115-122. - ISSN 1063-7761, DOI 10.1134/1.558645
Примечания : Cited References: 38
Предметные рубрики: ORGANIZED MOLECULAR ASSEMBLIES
ALKYL THIOL MONOLAYERS
STRUCTURAL CHARACTERIZATION
DYNAMICS SIMULATION
LANGMUIR MONOLAYER
SURFACES
GOLD
FILMS
AU(111)
MODEL
Аннотация: Equilibrium states of the system of self-assembled monolayers (SAMs) of n-alkanethiol molecules HS(CH2)(n-1)(X) with polar group X chemiabsorbed on the Au(111) crystal surface are considered. The couplings between the atoms (C, H) of the n-alkanethiols are approximated by the Lennard-Jones potential. The couplings between the n-alkanethiols and the crystal surface are approximated by the 12-3 potential. The interactions of polar groups and the self-images with the metal substrate are taken into consideration. The phase-transition temperatures, the structural order and equilibrium tilt, and the twist and azimuthal angles of the macromolecules, which depend on the dipole moments, are found. (C) 1998 American Institute of Physics.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A. S., Arkhipkin V. G., Kuzey I. E. , Vyunishev A. M., Zaitsev A. I., Zamkov A. V.
Заглавие : Nonlinear optical characterization of spontaneously grown domain structures in SBO crystals
Место публикации : Proceedings of SPIE - The International Society for Optical Engineering. - 2007. - Vol. 6729: ICONO 2007: Coherent and Nonlinear Optical Phenomena (28 May 2007 through 1 June 2007, Minsk, ) Conference code: 70618. - ISBN 0277786X (ISSN); 081946886X (ISBN); 9780819468864 (ISBN), DOI 10.1117/12.751986
Ключевые слова (''Своб.индексиров.''): domains--nonlinear crystals--nonlinear diffraction--nonlinear generation--quasi phase matching--nonlinear crystals--nonlinear diffraction--nonlinear generation--quasi phase matching--computation theory--crystal growth--crystal structure--crystallography--diffraction--phase matching--nonlinear optics
Аннотация: Spontaneously grown partially ordered domain structures in SBO crystals are characterized via nonlinear diffraction. Domains have the form of sheets lying in cb plane with the domain walls oriented perpendicularly to the a crystallographic axis. The thickness of domains varies in quite wide range. The effective thickness of domains contributing to the nonlinear diffraction is determined from Fourier spectrum of inverse superlattice wave vectors to lie between 180 nm and 8 microns. General properties of spatial Fourier spectrum are reproducible from one growth procedure to another, however, details of spectrum noticeably vary. Enhancement factors for random QPM are calculated and found to be of order of several thousand in the near UV.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Demontoux F., Le Crom B, Ruffi G., Wigneron JP., Grant J.P, Mironov V.L.
Заглавие : Electromagnetic characterization of soil-litter media - Application to the simulation of the microwave emissivity of the ground surface in forests
Место публикации : European Physical Journal - Applied Physics. - 2008. - Vol. 44, Is. 3. - С. 303-315
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A.S., Vyunishev A.M., Zaitesv A.I., Zamkov A.V.
Заглавие : Characterization of Domain Structure in Strontium Tetraborate Crystals via Nonlinear Diffraction
Место публикации : Известия высших учебных заведений. Физика. - 2008. - Т. 51, № 10/2. - С. 120-125
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Chukalina E. P., Popova M. N., Bezmaternykh L. N., Gudim I. A.
Заглавие : Spectroscopic characterization of the new multifunctional material SmFe3(BO3)4
Коллективы : Materials research society of Serbia. Conference
Место публикации : YUCOMAT 2009 : Eleventh Annual Conference: Hotel "Plaža", Montenegro, Aug. 31 - Sep. 4, 2009 Herceg Novi : programme and book of abstracts/ organised by: Materials research soc. of Serbia, a. Inst. of techn. sciences of the Serbian acad. of sciences a. arts, Belgrade ; [ed. by Dragan P. Uskoković]. - 2009. - С. 132. - ISBN 978-86-80321-18-9
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Iskhakov R. S., Chekanova L. A., Denisova E. A., Bukaemskiy A.A., Melnikova S.V.
Заглавие : Synthesis and investigation of nanostructured Fe1-xNi x(P) columns deposited into porous polycarbona te matrix
Место публикации : Physics, Chemistry and Application of Nanostructures - Proceedings of the International Conference, NANOMEETING 2009. - 2009. - International Conference on Physics, Chemistry and Application of Nanostructures, NANOMEETING 2009 (26 May 2009 through 29 May 2009, Minsk, ) Conference code: 99438. - С. 264-267. - ISBN 9814280356 (ISBN); 9789814280358 (ISBN)
Ключевые слова (''Своб.индексиров.''): exchange constants--macroscopic anisotropy--morphological characterization--nano-structured fe--nanocrystallines--perpendicular anisotropy--porous polycarbonate membranes--shape anisotropy--magnetic anisotropy--nanostructures--nickel
Аннотация: Ferromagnetic Fe1-xNix(P) (x=24-65 at.%.) columns have been chemically deposited into porous polycarbonate membranes with pore diameters of 0.1-4 J.Im. The morphological characterization by TEM reveals the shape features in synthesized columns. Their magnetic perpendicular anisotropy due to the shape anisotropy of columns was observed. The dependence of macroscopic anisotropy on pore diameter and Ni content is analyzed. Approach to magnetic saturation curves and exchange constant of nanocrystalline fe?.xNix(P) columns deposited into porous pol}\:arbonate matrix are investigated.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Aleksandrovsky A. S., Vyunishev A. M., Zaitsev A. I., Ikonnikov A.A., Pospelov G.I., Slabko V.V., Zhokhova A.A.
Заглавие : Deep UV generation and fs pulses characterization using strontium tetraborate
Коллективы : Nonlinear Optics and Applications
Место публикации : Nonlinear Optics and Applications V: Proceedings of the SPIE. - 2011. - С. 36. - (SPIE Optics + Optoelectronics)
Аннотация: The properties of NPC structures in strontium tetraborate are analyzed. Different types of NPC structures are revealed that possess different nonlinear properties, and their spectral dependences of frequency conversion efficiency are calculated and compared. Experimental study of these structures is reported for the process of doubling of the second harmonic of fs Ti:S laser. Tuning of generated radiation is obtained in the range 187.5 - 232.5 nm, with extreme insensitivity to the angular orientation of NPC. Behavior of tuning curve along investigated fundamental wave range is similar in all studied samples, but efficiency obtained depends on the type of structure. Conversion efficiency andspectral quality of generated radiation is experimentally shown to grow better when using NPC with improved structure. Prospects of VUV converter on a single NPC are discussed. NPCs of SBO are demonstrated to be useful for autocorrelation diagnostics both in random QPM geometry and in the geometry of nonlinear diffraction from virtual beam.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ovchinnikov S.G., Edelman I.S., Varnakov S.N., Saranin A.A., Tereshenko O.E.
Заглавие : Characterization and magnetic properties of the magnetic nanoparticles and nanostructures
Коллективы : International Symposium on Nanoscience and Technology
Место публикации : International Symposium on Nanoscience and Technology. - 2011
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ovchinnikov S.G., Varnakov S.N., Fedorov A.S., Lyaschenko S.A., Yakovlev I.A.
Заглавие : Characterization and magnetic properties of the iron silicides
Коллективы : Asian School-Conference on Physics and Technology of Nanostructured Materials, Азиатская школа-конференция по физике и технологии наноструктурированных материалов
Место публикации : Proceedings Asian School-Conference on Physics and Technology of Nanostructured Materials (ASCO-NANOMAT 2011)/ Asian School-Conference on Physics and Technology of Nanostructured Materials (2011 ; Aug. ; 22-29 ; Vladivostok, Russia), Азиатская школа-конференция по физике и технологии наноструктурированных материалов (1 ; 2011 ; авг. ; 21-28 ; Владивосток). - 2011
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11.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Shuvaeva M., Nuzhdin A., Bayukov O., Martyanov O., Bukhtiyarova G. A.
Заглавие : Synthesis and characterization of silica supported iron-containing catalyst for the Friedel-VCrafts benzylation of benzene
Коллективы : European conference of Control, European conference on Mechanical Engineering
Место публикации : Proceedings of the 2nd European conference of Control, and Proceedings of the 2nd European conference on Mechanical Engineering (ECC'11/ECME'11). - 2011. - С. 126-131. - ISBN 978-1-61804-057-2
Примечания : Библиогр.: 3
Аннотация: Benzylation of benzene with benzyl chloride was investigated in the temperature range 25-60°C over silica supported Fe-containing catalyst prepared by simple and reproducible method using FeSO4 as precursor. It was shown that the calcination temperature is the main parameter effecting the catalytic activity: the samples, containing 4-6wt% Fe, provide the reaction of benzene with benzyl chloride after calcinations at 400°C. Selectivity does not depend on the reaction temperature as well as iron content and is defined mainly by the ratio of the reactants. The effect of calcination temperature (300-900°C) on the catalytic properties of Fecontaining catalysts is discussed in connection with the evolution of iron species nature in the course of preparation and reaction.
Материалы конференции,
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aleksandrovsky A. S., Vyunishev A. M., Zaitsev A. I., Ikonnikov A. A., Pospelov G. I., Slabko V. V., Zhokhova A. A.
Заглавие : Deep UV generation and fs pulses characterization using strontium tetraborate
Коллективы : Nonlinear Optics and Applications (5; 2011 ; Apr. ; 19-21; Prague, Czech Republic)
Место публикации : Proc. of SPIE: SPIE-Int. Soc. Optical Engineering, 2011. - Vol. 8071. - Ст.80710K. - ISSN 0277-786X, DOI 10.1117/12.886189. - ISSN 978-0-81948-661-5
Примечания : Cited References: 12
Предметные рубрики: CRYSTAL
Ключевые слова (''Своб.индексиров.''): nonlinear photonic crystal--strontium tetraborate--second harmonic generation--random quasi phase matching--ultrafast diagnostics
Аннотация: The properties of NPC structures in strontium tetraborate are analyzed. Different types of NPC structures are revealed that possess different nonlinear properties, and their spectral dependences of frequency conversion efficiency are calculated and compared. Experimental study of these structures is reported for the process of doubling of the second harmonic of fs Ti:S laser. Tuning of generated radiation is obtained in the range 187.5 - 232.5 nm, with extreme insensitivity to the angular orientation of NPC. Behavior of tuning curve along investigated fundamental wave range is similar in all studied samples, but efficiency obtained depends on the type of structure. Conversion efficiency and spectral quality of generated radiation is experimentally shown to grow better when using NPC with improved structure. Prospects of VUV converter on a single NPC are discussed. NPCs of SBO are demonstrated to be useful for autocorrelation diagnostics both in random QPM geometry and in the geometry of nonlinear diffraction from virtual beam.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aleksandrovsky A. S., Vyunishev A. M., Zaitsev A. I., Ikonnikov A. A., Pospelov G. I.
Заглавие : Ultrashort pulses characterization by nonlinear diffraction from virtual beam
Место публикации : Appl. Phys. Lett.: AMER INST PHYSICS, 2011. - Vol. 98, Is. 6. - Ст.61104. - ISSN 0003-6951, DOI 10.1063/1.3554370
Примечания : Cited References: 14. - The work was supported by Ministry of Education and Science of Russian Federation (Contract No. 16.740.11.0150); Grant of President of Russian Federation for support of leading scientific schools Grant No. SS-4645.2010.2; Grant No. RNP.2.1.1.3455 and Projects 2.5.2 and 3.9.1 of PSB RAS; and Projects Nos. 27.1 and 5 of SB RAS. A. M. Vyunishev is grateful for support from Carl Zeiss Grant and from Krasnoyarsk Regional Fund of Science and Technical Activity Support.
Предметные рубрики: CRYSTAL
SRB4O7
Ключевые слова (''Своб.индексиров.''): broad spectral--frequency-doubling--noncollinear--nonlinear diffraction--nonlinear photonic crystals--short-wavelength--tetraborate--ultrafast diagnostics--diffraction--light propagation--strontium--ultrashort pulses--photonic crystals
Аннотация: Noncollinear frequency doubling in a random nonlinear photonic crystal of strontium tetraborate via nonlinear diffraction from virtual beam is investigated. This effect is shown to be useful for ultrashort pulses characterization in broad spectral range. Nonlinear photonic crystals of strontium tetraborate are a promising medium for ultrafast diagnostics in short-wavelength applications. (C) 2011 American Institute of Physics. [doi:10.1063/1.3554370]
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Anghel L., Balasoiu M., Ishchenko L. A., Stolyar S. V., Kurkin T. S., Rogachev A. V., Kuklin A. I., Kovalev Yu.S., Raikher Yu.L., Iskhakov R. S., Duca G.
Заглавие : Characterization of bio-synthesized nanoparticles produced by Klebsiella oxytoca
Коллективы : International Workshop on SANS-YuMO User Meeting at the Start-up of Scientific Experiments on the IBR-2M Reactor: Devoted to the 75th Anniversary of Yu M Ostanevich's Birth
Место публикации : Journal of Physics: Conference Series. - 2012. - Vol. 351, Is. 1. - Ст.012005. - P. - ISSN 1742-6588, DOI 10.1088/1742-6596/351/1/012005
Ключевые слова (''Своб.индексиров.''): absorption peaks--biominerals--chemical compositions--exopolysaccharides--ferrihydrites--fitting procedure--ftir spectroscopy--klebsiella oxytoca--model calculations--morphological analysis--radius of gyration--scattering objects--small angle x-ray scattering--structural and morphological properties--structural investigation--uv-vis spectroscopy--water dispersion--water-dispersed--experiments--nanoparticles--polysaccharides--raman spectroscopy--scattering--ultraviolet visible spectroscopy--synthesis (chemical)
Аннотация: Structural and morphological properties of biogenic ferrihydrite nanoparticles produced by bacteria Klebsiella oxytoca are investigated. The stability of water dispersions of biomineral particles produced by Klebsiella oxytoca was monitored by UV-Vis spectroscopy. Their chemical composition was determined by FT-IR spectroscopy. The vibrational spectra of biogenic ferrihydrite nanoparticles revealed typical absorption peaks of exopolysaccharides. Morphological analysis based on Raman spectroscopy indicated the presence of exopolysaccharides on the surface as well as inside the pores of the ferrihydrite nanoparticles. Structural investigations of ultrasonic assisted samples of different concentration of water dispersed particles were performed using small angle X-ray scattering analysis. Model calculations and fitting procedures revealed scattering objects of an elongated shape with 6.73В±0.16 nm radius of gyration. В© Published under licence by IOP Publishing Ltd.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisov V. M., Volkov N. V., Irtyugo L. A., Patrin G. S., Denisova L. T.
Заглавие : High-temperature heat capacity of the BiFeO3 multiferroic
Место публикации : Phys. Solid State: MAIK Nauka-Interperiodica / Springer, 2012. - Vol. 54, Is. 6. - P.1312-1314. - ISSN 1063-7834, DOI 10.1134/S1063783412060108
Примечания : Cited References: 27
Предметные рубрики: STRUCTURAL-CHARACTERIZATION
SINGLE-CRYSTALS
FEATURES
SYSTEM
RANGE
Аннотация: Data on the heat capacity of the BiFeO3 multiferroic have been obtained within a broad temperature interval. Correlation has been established between the composition of the Bi2O3-Fe2O3 pseudobinary system and the specific heat capacity of the oxide compounds.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bovina A. F., Gudim I. A., Eremin E. V., Temerov V. L.
Заглавие : Growth and characterization of Fe1-xMxVO(4) single crystals (M = Al, Cr, Co, Ga)
Место публикации : Crystallogr. Rep.: MAIK Nauka-Interperiodica / Springer, 2012. - Vol. 57, Is. 7. - P.955-958. - ISSN 1063-7745, DOI 10.1134/S106377451207005X
Примечания : Cited References: 4
Предметные рубрики: FeVO4
Аннотация: Triclinic Fe1-xMxVO4 single crystals (M = Al, Ga, Co, Cr) have been grown by the flux method from systems based on PbO-V 2O5. Their crystallographic parameters are determined by powder X-ray dif- fraction. Fe1-xGaxVO4 single crystals (x = 0-0.3) with a volume more than 1cm3 are grown using the seeding technique. The temperature and field dependences of magnetization and magnetic susceptibility of the grown Fe1-xGaxVO4 and Fe1-xAlxVO4 single crystals (x = 0.3 in the solution-melt) are reported. It is shown that the magnetizations of these crystals exceed that of FeVO4, and both of their antiferromagnetic phase transi- tions are shifted to lower temperatures.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Golovnev N. N., Vasiliev A. D., Kirik S. D.
Заглавие : Enrofloxacinium citrate monohydrate: Preparation, crystal structure, thermal stability and IR-characterization
Место публикации : J. Mol. Struct.: Elsevier Science BV, 2012. - Vol. 1021. - P.112-117. - ISSN 0022-2860, DOI 10.1016/j.molstruc.2012.04.059
Примечания : Cited References: 22. - The authors are grateful to the Ministry of Education and Science (Government Contracts # 02.740.11.0629) for the financial support of the investigation.
Предметные рубрики: COCRYSTAL
ANTIBACTERIAL
BEHAVIOR
STATE
ACID
Ключевые слова (''Своб.индексиров.''): enrofloxacin--citric acid--crystal structure--ir spectra--thermal analysis
Аннотация: Enrofloxacinium citrate monohydrate (I), C19H 23FN3O3+В·C6H7O7- В·H2O, [C19H22FN3O3 - enrofloxacin, EnrH] has been crystallized from the mutual solution of citric acid and enrofloxacin in ambient conditions. The colorless crystals have been investigated using X-ray single crystal and powder techniques, and characterized by differential scanning calorimetry, thermogravimetry and infrared spectroscopy. The obtained compound can be considered as a salt with enrofloxacinium in the role of a cation and citrate as an anion. The ions ratio equals to 1:1. The compound crystallizes in the triclinic lattice with a = 9.0489(8) A, b = 9.6531(8) A, c = 14.913(1) A, ? = 98.813(1)В°, ? = 92.029(1)В°, ? = 91.013(1)В°, Z = 2, V = 1286.1(2) A3, S.G. P1?. The crystal structure determination reveals the importance of inter- and intramolecular interactions in the crystal formation. The EnrH2+andH3Cit- molecular ions are packed in alternating layers with water molecules inserted into the citrate layers. A citrate ion in the layer is linked via H-bondings with two adjacent ones and three water molecules. Enrofloxacinium cations are packaged by means of a benched mode and every cation is linked by three intermolecular thymus type H-bondings with nitrogens of adjacent cations and by two links with the oxygen of the citrate ions. The infrared spectra gave the evidence of H-bonding formation in the obtained salt. The ?-stacking interactions are observed between the aromatic cycles of the adjacent cations which are located in an antiparallel style in a layer. В© 2012 Elsevier B.V. All rights reserved.
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Atuchin V. V., Molokeev M. S., Yurkin G. Yu., Gavrilova T. A., Kesler V. G., Laptash N. M., Flerov I. N., Patrin G. S.
Заглавие : Synthesis, structural, magnetic, and electronic properties of cubic CsMnMoO3F3 oxyfluoride
Место публикации : J. Phys. Chem. C: American Chemical Society, 2012. - Vol. 116, Is. 18. - P.10162-10170. - ISSN 1932-7447, DOI 10.1021/jp302020f
Примечания : Cited References: 64. - We thank Dr. A.M. Ziatdinov for the electron paramagnetic resonance measurements. This study was partly supported by SB RAS (Grant 28).
Предметные рубрики: RAY PHOTOELECTRON-SPECTROSCOPY
PHASE-TRANSITIONS
CORE LEVELS
SURFACE CHARACTERIZATION
CRYSTAL-STRUCTURE
CLEAVED SURFACE
MIXED-VALENCE
OXIDES
MN
MOLYBDENUM
Chemical bondings
Cubic phase
Energy differences
Heat capacity measurements
Oxyfluorides
Powder samples
Solid-state synthesis
Space Groups
Temperature range
Valence electron
Binding energy
Chemical bonds
Electronic structure
Fluorine compounds
Magnetic properties
Metal ions
Photoelectrons
Rietveld method
X ray photoelectron spectroscopy
Electronic properties
Аннотация: A powder sample of CsMnMoO3F3 oxyfluoride has been prepared by solid state synthesis. The pyrochlore-related crystal structure of CsMnMoO3F3 has been refined by the Rietveld method at T = 298 K (space group Fd-3m, a = 10.59141(4) angstrom, V = 1188.123(8) angstrom(3); R-B = 3.44%). The stability of the cubic phase has been obtained over the temperature range T = 110-293 K by heat capacity measurements. Magnetic properties have been measured over the range of T = 2-300 K. The electronic structure of CsMnMoO3F3 has been evaluated by X-ray photoelectron spectroscopy. Chemical bonding effects have been discussed for all metal ions using binding energy difference parameters and wide comparison with related oxides and fluorides. The competition between O-2(-) and F- ions for metal valence electrons has been found.
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19.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Kosyrev N. N., Varnakov S. N., Tarasov I. A., Lyashenko S. A., Ovchinnikov S. G.
Заглавие : Characterization of manganese and iron silicides by in situ spectral generalized magneto-optical ellipsometry
Коллективы : Workshop Ellipsometry (7; 2012 ; март ; 5-7; Leipzig, Germany)
Место публикации : 7th Workshop on Ellipsometry: abstract book. - 2012. - P. - 82
Аннотация: Dilute magnetic semiconductors (DMS) combine the electronic transport properties of semiconductors and memory characteristics of magnetic materials. The complementary properties of semiconductor and ferromagnetic material can manipulate both degrees of freedoms of electrons0 spins and charges for spintronic devices. In recent years, group IV(Ge,Si)-based DMSs attract considerable experimental effort due to the compatibility with mainstream silicon technology. In ourworkwe present the investigation of structural,magnetic and optical properties ofmanganese and iron silicides thin films on Si (100) substrate by in situ spectral generalizedmagneto-optical ellipsometry. Themeasurementswere performed by spectral and laser ellipsometers (“Spectroscan“ and “LEF-71“ respectively by Institute Semiconductors Physics SB RAS), optimized tomeasure not only traditional ellipsometric parameters, but also magneto-optical response of the sample. The magnetoellipsometers were integrated into the ultrahigh vacuum chambers of molecular beam epitaxy setup, which allowed to control the optical and magnetic properties of thin films directly in the growth process. As a result of the magneto-optical response analysis, it was found that iron and manganese silicides in magnetic phase were formed on the Si surface and by analysis of the ellipsometric parameters dependence on evaporation time the silicide nanoclusters were identified and their structural properties were found. The work was supported by project 4.1 of the OFN RAS, project 27.10 of the Presidium RAS, integration project22 of SB RAS and FEB RAS, and also the FCP NK-744P/6 .
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20.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Tarasov I. A., Varnakov S. N., Yakovlev I. A., Zharkov S. M., Kosyrev N. N., Ovchinnikov S. G.
Заглавие : Time-resolved ellipsometric characterization of (Fe/Si)n multilayer film synthesis
Коллективы : Donostia International Conference on Nanoscaled Magnetism and Applications (9 -13 Sept. 2013; San Sebastian, Spain)
Место публикации : Donostia Int. Conf. on Nanoscaled Magnetism and Applications: Abstracts book. - 2013. - Ст.P1-27. - P.260
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