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Makarov, N. P.
Effective upconversion of CO2-laser radiation in sodium vapors / N. P. Ьakarov, A. K. Popov, V. P. Timofeev // Appl. Phys. B. - 1983. - Vol. 30, Is. 1. - P. 53-55, DOI 10.1007/BF00692659. - Cited References: 17 . - ISSN 0721-7269

РУБ Physics, Applied

Кл.слова (ненормированные):
42.65 -- 42.80 -- LASERS, CARBON DIOXIDE -- SODIUM AND ALLOYS -- LIGHT

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Держатели документа:
Siberian Branch, L. V. Kirensky Institute of Physics, USSR Academy of Sciences, Krasnoyarsk, SU-660036, Russia

Доп.точки доступа:
Popov, A. K.; Попов, Александр Кузьмич; Timofeev, V. P.
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Bolotskikh, L. T.
Amplified phase-conjugate reflection of lambda = 10.51 MU-M radiation in gaseous SF6 / L. T. Bolotskikh, A. K. POPOV // Appl. Phys. B. - 1983. - Vol. 31, Is. 3. - P. 191-192, DOI 10.1007/BF00688842. - Cited References: 7 . - ISSN 0721-7269

РУБ Physics, Applied

Кл.слова (ненормированные):
42.65 -- LASERS, CARBON DIOXIDE -- SULFUR COMPOUNDS -- SULFUR HEXAFLUORIDE -- LASER BEAMS

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Держатели документа:
Siberian Branch, L. V. Kirensky, Institute of Physics, USSR Academy of Sciences, Krasnoyarsk, SU-660036, Russia

Доп.точки доступа:
Popov, A. K.; Попов, Александр Кузьмич
}
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Churilov, G. N.
Preparation of fullerenes and nanotubes in coal plasma jet in kilohertz frequency range / G. N. Churilov, A. Y. Korets, Y. N. Titarenko // Zhurnal Tek. Fiz. - 1996. - Vol. 66, Is. 1. - P. 191-194. - Cited References: 6 . - ISSN 0044-4642

РУБ Physics, Applied
Рубрики:
SPECTRA
CARBON

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Доп.точки доступа:
Korets, A. Y.; Titarenko, Y. N.
}
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Frolov, G. I.
Temperature effect on structural transformations in nanocrystalline cobalt films / G. I. Frolov, V. S. Zhigalov, V. K. Mal'tsev // Phys. Solid State. - 2000. - Vol. 42, Is. 2. - P. 334-336, DOI 10.1134/1.1131208. - Cited References: 11 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
IRON FILMS
CARBON
Аннотация: The effect of annealing temperature on the structure and magnetic properties of nanocrystalline cobalt films has been studied by nuclear magnetic resonance (NMR) and magnetometric (vibrational magnetometer) techniques. Interpretation of the experimental data demonstrates that the initial films have an amorphous-like structure due to the high degree of disordering in the intergranular regions and nanoparticles. This structure transforms into the equilibrium polycrystalline state through the formation of a number of intermediate phases. (C) 2000 MAIK "Nauka/ Interperiodica".

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Держатели документа:
Russian Acad Sci, Kirenskii Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Zhigalov, V. S.; Жигалов, Виктор Степанович; Mal'tsev, V. K.; Maltsev, V. K.; Фролов, Георгий Иванович
}
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Theoretical study of the toroidal forms of carbon and related endohedral complexes with lithium / A. A. Kuzubov [et al.] // Phys. Solid State. - 2001. - Vol. 43, Is. 10. - P. 1982-1988, DOI 10.1134/1.1410643. - Cited References: 11 . - ISSN 1063-7834

РУБ Physics, Condensed Matter

Аннотация: The atomic and electron structures of toroidal carbon molecules (C-240 and two C-120 isomers) and related endohedral complexes with lithium (Li-2@C-n and Li-4@C-n) were theoretically studied using both nonempirical (3-21G basis set) and semiempirical (MNDO) calculation schemes. For the metal-containing compounds, the behavior of lithium atoms embedded into internal cavities of the carbon framework was studied using methods of molecular dynamics. It is demonstrated that the structure of electron levels of metal-containing carbon complexes exhibits an embedded state in the forbidden band, which appears due to the presence of electrons accepted from metal atoms. The position of this embedded state and the bandgap width depend both on the initial carbon structure and on the amount of metal atoms incorporated. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Krasnoyarsk State Tech Univ, Krasnoyarsk, Russia
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Div, Krasnoyarsk, Russia
ИФ СО РАН
ИХХТ СО РАН
Krasnoyarsk Stt. Tech. University, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Inst. of Chem. and Chem. Technology, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kuzubov, A. A.; Кузубов, Александр Александрович; Avramov, P. V.; Аврамов, Павел Вениаминович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Varganov, S. A.; Tomilin, F. N.; Томилин, Феликс Николаевич
}
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Electron density as the main parameter influencing the formation of fullerenes in a carbon plasma / G. N. Churilov [et al.] // Phys. Solid State. - 2002. - Vol. 44: 5th International Workshop on Fullerence and Atomic Clusters (JUL 02-06, 2001, ST PETERSBURG, RUSSIA), Is. 3. - P. 419-423, DOI 10.1134/1.1462659. - Cited References: 8 . - ISSN 1063-7834

РУБ Physics, Condensed Matter

Аннотация: Thermodynamic estimates are presented for the formation of spheroidal and flat carbon clusters from reactant species of different charges. Charge is shown to strongly influence the geometry and stability of flat clusters. Changes in the charge of flat clusters can promote both their folding to spheroidal structures and their dissociation. It is concluded that the fluctuations of electron concentration in carbon plasmas can result in the accumulation of fullerene clusters and the dissociation of flat clusters. (C) 2002 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
Rice Univ, Houston, TX 77005 USA
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Churilov, G. N.; Чурилов, Григорий Николаевич; Novikov, P. V.; Новиков, Павел Вадимович; Lopatin, V. A.; Лопатин, Владислав Александрович; Vnukova, N. G.; Внукова, Наталья Григорьевна; Bulina, N. V.; Булина, Наталья Васильевна; Bachilo, S. M.; Tsyboulski, D.; Weisman, R. B.
}
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Churilov, G. N.
Fullerene C-60 formation in partially ionized carbon vapor / G. N. Churilov, A. S. Fedorov, P. V. Novikov // JETP Letters. - 2002. - Vol. 76, Is. 8. - P. 522-526, DOI 10.1134/1.1533779. - Cited References: 15 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
TOTAL-ENERGY CALCULATIONS
   WAVE BASIS-SET
   CLUSTERS
   GROWTH
Аннотация: The assembling rate of a fullerene C-60 molecule has been theoretically studied as a function of electron concentration and temperature in partially ionized carbon vapor. For C-60 formation via one or two intermediate stages of cluster collisions, it has been shown that there is a region of plasma parameters (the temperature and electron concentration) in which fullerene C-60 is formed more efficiently. The C-60 formation rate versus temperature and electron concentration relationships have been found to correlate with the trends in the collision cross-section of carbon clusters as functions of these parameters. (C) 2002 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Novikov, P. V.; Чурилов, Григорий Николаевич
}
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The effect of electron density on the kinetics of fullerene formation in carbon plasma / K. L. Stepanov [et al.] // Tech. Phys. Lett. - 2003. - Vol. 29, Is. 11. - P. 927-929, DOI 10.1134/1.1631366. - Cited References: 10 . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
C-60
Аннотация: The influence of the carbon cluster charge on their coagulation kinetics has been studied. The equations of kinetics have been solved and it is established that allowance for the cluster charging leads to an increase in the rate of fullerene formation under otherwise equal conditions. In connection with this, the role of minor impurities with a low ionization potential in carbon-containing plasma is discussed. (C) 2003 MAIK "Nauka/Interperiodica".

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Держатели документа:
Natl Acad Sci Belarus, Lykov Inst Heat & Mass Transfer, Minsk, Byelarus
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia
ИФ СО РАН
Lykov Inst. of Heat/Mass Transfer, Natl. Academy of Sciences of Belarus, Minsk, Belarus
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Stepanov, K. L.; Stankevich, Y. A.; Stanchits, L. K.; Churilov, G. N.; Чурилов, Григорий Николаевич; Fedorov, A. S.; Федоров, Александр Семенович; Novikov, P. V.
}
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Synthesis and properties of plasma-deposited carbon condensates / G. A. Glushchenko [et al.] // Tech. Phys. Lett. - 2003. - Vol. 29, Is. 11. - P. 933-935, DOI 10.1134/1.1631368. - Cited References: 9 . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
GRAPHITE
Аннотация: Structural data, thermal characteristics, and theoretically calculated binding energies are reported for a graphite condensate obtained by carbon deposition from plasma. It is demonstrated that this condensate can be effectively used in self-propagating high-temperature synthesis processes. (C) 2003 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk, Russia
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Div, Krasnoyarsk, Russia
ИФ СО РАН
ИХХТ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Krasnoyarsk Stt. Tech. University, Krasnoyarsk, Russian Federation
Inst. of Chem./Chemical Technology, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Glushchenko, G. A.; Глущенко, Гарий Анатольевич; Bulina, N. V.; Булина, Наталья Васильевна; Novikov, P. V.; Bondarenko, G. N.; Бондаренко, Галина Николаевна; Churilov, G. N.; Чурилов, Григорий Николаевич
}
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10.

Isotope velocity differentiation in thin carbon nanotubes through quantum diffusion / A. S. Fedorov [et al.] // Europhys. Lett. - 2003. - Vol. 63, Is. 2. - P. 254-260, DOI 10.1209/epl/i2003-00512-5. - Cited References: 17 . - ISSN 0295-5075

РУБ Physics, Multidisciplinary
Рубрики:
MOLECULAR-DYNAMICS
   TRANSITIONS
   TRANSPORT
   ENERGY
Аннотация: An approach is proposed to evaluate the average velocities of adsorbate molecules in one-dimensional nanopore, when quantum tunneling between neighboring potential minima leads to nonzero velocity. The approach is used to calculate the hydrogen isotope molecule (H-2, D-2, T-2) velocities in ultrathin carbon single-wall nanotubes (SWNT) (3, 3) and (6, 0). It is shown that the isotope mass difference leads to large differences of the quantum tunneling value and large differences of the average molecule velocities, especially inside the tube (6, 0). It is shown that different tube chirality leads to drastically different velocities of adsorbate molecules, even if the diameters of both nanotubes do not differ significantly.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Kirenski Inst Phys, Krasnoyarsk 660036, Russia
Univ Vienna, Inst Mat Phys, Vienna, Austria
ИФ СО РАН
Kirenski Institute of Physics, Siberian Branch, Russian Academy of Science, Krasnoyarsk 660036, Russian Federation
Institut fur Materialphysik, Universitat Wien, Wien, Austria

Доп.точки доступа:
Fedorov, A. S.; Федоров, Александр Семенович; Avramov, P. V.; Аврамов, Павел Вениаминович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Kresse, G.
}
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11.

Fe nanowires in carbon nanotubes as an example of a one-dimensional system of exchange-coupled ferromagnetic nanoparticles / R. S. Iskhakov [et al.] // JETP Letters. - 2003. - Vol. 78, Is. 4. - P. 236-240, DOI 10.1134/1.1622038. - Cited References: 38 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
MAGNETIC-PROPERTIES
   RANDOM ANISOTROPY
   ELECTRODEPOSITED NANOWIRES
   NI NANOWIRES
   ARRAYS
   NANOCRYSTALLINE
   ALUMINA
   NICKEL
   PORES
   STATE
Аннотация: The cooperative phenomena revealed in the field and temperature dependences of the magnetization in a system of iron nanoparticles in carbon nanotubes were studied experimentally. The character of the temperature dependences of the magnetization indicates that the ferromagnetic Fe particles in carbon nanotubes are exchange-coupled. In the region where the magnetization approaches saturation, the magnetization curves reveal the power dependence DeltaM similar to H-3/2 typical for a one-dimensional system of exchange-coupled ferromagnetic nanoparticles. (C) 2003 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Div, Novosibirsk 630090, Russia
Russian Acad Sci, Boreskov Inst Catalysis, Siberian Div, Novosibirsk 630090, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Akademgorodok, 660036, Russian Federation
Nikolaev Institute of Inorganic Chemistry, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent'eva 3, Novosibirsk, 630090, Russian Federation
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent'eva 5, Novosibirsk, 630090, Russian Federation

Доп.точки доступа:
Iskhakov, R. S.; Исхаков, Рауф Садыкович; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Balaev, A. D.; Балаев, Александр Дмитриевич; Okotrub, A. V.; Kudashov, A. G.; Kuznetsov, V. L.; Butenko, Y. V.
}
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12.

Zharkov, S. M.
Electron-beam-initiated crystallization of iron-carbon films / S. M. Zharkov, L. I. Kveglis // Phys. Solid State. - 2004. - Vol. 46, Is. 5. - P. 969-974, DOI 10.1134/1.1744977. - Cited References: 34 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
AMORPHOUS-GERMANIUM FILMS
   EXPLOSIVE CRYSTALLIZATION
   PATTERN-FORMATION
   TEMPERATURE
   MICROSCOPY
   MECHANISM
Аннотация: A structure formed in nanocrystalline iron-carbon films exposed to an electron beam was studied. Explosive crystallization (EC) with the formation of dendrite and cellular-dendritic instabilities at a rate of up to 1 cm/s was observed. It was shown that the dependence between the growth rate of dendrite branches (or cells) during EC and the rounding radius of dendrite branch tips can be approximately described by equations used to calculate the crystal growth in supercooled melts. To explain the EC mechanism, a model of a liquid zone formed at the crystallization front was used. It was shown that the liquid zone arises due to energy accumulated in the film in the nanocrystalline state. It was assumed that this energy was accumulated due to the energy of elastic stresses. (C) 2004 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Kveglis, L. I.; Жарков, Сергей Михайлович
}
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13.

Avramov, P. V.
Effect of carbon network defects on the electronic structure of semiconductor single-wall carbon nanotubes / P. V. Avramov, B. I. Yakobson, G. E. Scuseria // Phys. Solid State. - 2004. - Vol. 46, Is. 6. - P. 1168-1172, DOI 10.1134/1.1767262. - Cited References: 15 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
JUNCTIONS
Аннотация: For a single-wall (14, 0) carbon nanotube, the total density of electronic states of the ideal structure and of some possible defect structures is calculated in the framework of the band theory approach using Gaussian-type orbitals and the approximation of the generalized density gradient. It is shown that allowance for defects of the atomic structure of a nanotube makes it possible to adequately describe the existing experimental data on nanotube electronic structure. In the framework of the same approach, the total density of electronic states is calculated for an intermolecular contact of (5, 5) and (10, 0) single-wall carbon nanotubes formed due to the creation of a 5-7 defect. It is shown that the electronic states related to the contact region and the 5-7 defect lie in vicinity of the Fermi level. (C) 2004 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Rice Univ, Ctr Biol & Environm Nanotechnol, Houston, TX 77005 USA
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Ctr. for Biol./Environ. Nanotechnol., Rice University, Houston, TX 77005-1892, United States

Доп.точки доступа:
Yakobson, B. I.; Scuseria, G. E.; Аврамов, Павел Вениаминович
}
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14.

Correlation of the chemical properties of carbon nanotubes with their atomic and electronic structures / F. N. Tomilin [et al.] ; Translated by N. Korovin // Phys. Solid State. - 2004. - Vol. 46, Is. 6. - P. 1179-1182, DOI 10.1134/1.1767264. - Cited References: 16. - This work was performed at the “Quantum-Chemical Calculations of Nanoclusters” Collective Use Center of the Krasnoyarsk Center of Science and Education in High Technology, which is supported by the Russian State Federal Program “Integration of Higher Education and Fundamental Science” (projects nos. 31 and 69) and the 6th Competition of Research Projects of Young Scientists of the Russian Academy of Sciences (project no. 155) . - ISSN 1063-7834

РУБ Physics, Condensed Matter

Аннотация: The nature of chemical bonding in carbon nanoclusters is investigated by the PM3 semiempirical quantum-chemical method. The influence of the atomic structure on the electronic characteristics and chemical properties of nanoclusters is analyzed. A sigma-pi model is proposed for the chemical bonding in nanotubes. It is shown that, in the framework of the proposed model, nanotubes are objects characterized by a small contribution of pi states to the valence band top. (C) 2004 MAIK "Nauka/Interperiodica".

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Публикация на русском языке Связь химических свойств углеродных нанотрубок с их атомной и электронной структурами [Текст] / Ф. Н. Томилин [и др.] // Физ. тверд. тела. - 2004. - Т. 46 Вып. 6. - С. 1143-1146

Держатели документа:
Russian Acad Sci, Siberian Div, Inst Chem & Chem Technol, Krasnoyarsk 660041, Russia
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Siberian State Technol Univ, Krasnoyarsk 660041, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660079, Russia
ИФ СО РАН
ИХХТ СО РАН
Inst. of Chem./Chemical Technology, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Stt. Technol. University, Krasnoyarsk, 660041, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, 660079, Russian Federation

Доп.точки доступа:
Tomilin, F. N.; Томилин, Феликс Николаевич; Avramov, P. V.; Аврамов, Павел Вениаминович; Kuzubov, A. A.; Кузубов, Александр Александрович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Pashkov, G. L.; Пашков, Геннадий Леонидович; Korovin, N. \пер.\
}
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15.

Electromagnetic density of states and absorption of radiation by aggregates of nanospheres with multipole interactions / V. A. Markel [et al.] // Phys. Rev. B. - 2004. - Vol. 70, Is. 5. - Ст. 54202, DOI 10.1103/PhysRevB.70.054202. - Cited References: 81 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
DISCRETE-DIPOLE APPROXIMATION
   ENHANCED RAMAN-SCATTERING
   METAL FRACTAL CLUSTERS
   OPTICAL-PROPERTIES
   SELECTIVE PHOTOMODIFICATION
   DISORDERED CLUSTERS
   NUMERICAL-SIMULATION
   SPECTRAL DEPENDENCE
   PARTICULATE MATTER
   LIGHT-SCATTERING
Кл.слова (ненормированные):
carbon -- iron -- palladium -- silver -- article -- dipole -- electromagnetic field -- geometry -- mathematical analysis -- molecular interaction -- nanoparticle -- radiation absorption
Аннотация: We calculate the quasistatic electromagnetic density of states for aggregates of touching spheres, in particular, linear chains and computer-generated random fractal aggregates. Multipole moments with orders of up to L=64 are taken into account for random aggregates with the number of particles of up to N=100 and up to L=8000 for linear chains. Extensive comparisons with the dipole approximation and geometrical cluster renormalization method are performed. Extinction spectra are calculated for several metals and black carbon. Long wavelength electromagnetic properties of fractal aggregates are considered in details.

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Держатели документа:
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Jackson State Univ, Dept Phys, Jackson, MS 39217 USA
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia
Krasnoyarsk State Tech Univ, Dept Phys & Engn, Krasnoyarsk 660028, Russia
Natl Acad Sci Ukraine, Inst Surface Chem, UA-03164 Kiev, Ukraine
ИФ СО РАН
Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, United States
Department of Physics, Jackson State University, Jackson, MS 39217, United States
L. V. Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation
Moscow Inst. of Phys. and Technology, Dolgoprudny, Moscow Region 141700, Russian Federation
Dept. of Physics, and Engineering, Krasnoyarsk State Tech. University, Krasnoyarsk 660028, Russian Federation
Institute of Surface Chemistry, Natl. Academy of Sciences of Ukraine, 17 General Naumov St., 03164 Kiev, Ukraine

Доп.точки доступа:
Markel, V. A.; Pustovit, V. N.; Karpov, S. V.; Карпов, Сергей Васильевич; Obuschenko, A. V.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Isaev, I. L.; Исаев, Иван Леонидович
}
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16.

Parameters of the effective singlet-triplet model for band structure of high-T-c cuprates by alternative approaches / M. M. Korshunov [et al.] // J. Exp. Theor. Phys. - 2004. - Vol. 99, Is. 3. - P. 559-565, DOI 10.1134/1.1809685. - Cited References: 48 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
DENSITY-FUNCTIONAL CALCULATION
   TIGHT-BINDING METHOD
   COPPER OXIDES
   ENERGY-BANDS
   SUPERCONDUCTORS
   HOLE
   LA2-XSRXCUO4
   PLANE
   SR2CUO2CL2
   INSULATORS
Кл.слова (ненормированные):
Band structure -- Carbon dioxide lasers -- Copper oxides -- Doping (additives) -- Parameter estimation -- Electron systems -- Generalized tight binding (GTB) -- Parameters extraction -- Singlet triplet model -- Technetium compounds
Аннотация: We consider the problem of determining the parameters for high-T-c superconducting copper oxides. Alternative approaches, the ab initio LDA and LDA + U calculations and the generalized tight-binding (GTB) method for strongly correlated electron systems, are used to calculate hopping and exchange parameters of the effective singlet-triplet model for the CuO2 layer. The resulting parameters are in remarkably good agreement with each other and with parameters extracted from experiment. This set of parameters is proposed for proper quantitative description of the physics of hole-doped high-T-c cuprates in the framework of effective models. (C) 2004 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Institute of Metal Physics, Ural Division, Russian Academy of Sciences, Ekaterinburg, 620219, Russian Federation

Доп.точки доступа:
Korshunov, M. M.; Коршунов, Максим Михайлович; Gavrichkov, V. A.; Гавричков, Владимир Александрович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Pchelkina, Z. V.; Nekrasov, I. A.; Korotin, M. A.; Anisimov, V. I.
}
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17.

Fedorov, A. S.
Density and thermodynamics of hydrogen adsorbed inside narrow carbon nanotubes / A. S. Fedorov, S. G. Ovchinnikov ; Translated by A. Kazantsev // Phys. Solid State. - 2004. - Vol. 46, Is. 3. - P. 584-589, DOI 10.1134/1.1687883. - Cited References: 21. - This study was supported by the federal program “Integration,” project no. Б0017 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MOLECULAR-DYNAMICS
   TRANSITIONS
   TRANSPORT
   ENERGY
   TUBES
Аннотация: A model is proposed for calculating the thermodynamic functions and the equilibrium density of a one-dimensional chain of molecules (atoms) adsorbed inside a narrow nanotube. The model considers both the interaction between introduced atoms (molecules) and their interaction with the nanotube walls. The quantum-mechanical effects resulting in discrete energy levels of a particle and in its smeared position between neighbors are taken into account. In calculating the free energy at a nonzero temperature, the phonon contribution and the particle transitions to excited levels are considered. The model is applied to calculate the thermodynamic parameters of adsorbed hydrogen molecules inside extremely narrow single-wall carbon nanotubes of the (3,3) and (6,0) type. It is shown that external pressure gives rise to a sequence of first-order phase transitions, which change the density of adsorbed hydrogen molecules. (C) 2004 MAIK "Nauka / Interperiodica".

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Переводная версия Федоров, Александр Семенович. Плотность и термодинамика водорода, адсорбированного внутри узких углеродных нанотрубок [Текст] / А. С. Федоров, С. Г. Овчинников // Физ. тверд. тела. - 2004. - Т. 46 Вып. 3. - С. 563-568

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Fac New Mat & Technol, UNESCO, Krasnoyarsk 660074, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
UNESCO Fac. New Mat./Technologies, Krasnoyarsk Stt. Tech. University, Krasnoyarsk, 660074, Russian Federation

Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Kazantsev, A. \пер.\; Федоров, Александр Семенович
}
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18.

Magnetic anisotropy in the films of oriented carbon nanotubes filled with iron nanoparticles / S. V. Komogortsev [et al.] // Tech. Phys. Lett. - 2005. - Vol. 31, Is. 6. - P. 454-456, DOI 10.1134/1.1969761. - Cited References: 5 . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
FE
Аннотация: Films of carbon nanotubes oriented perpendicularly to the substrate surface and filled with iron nanoparticles have been synthesized and studied. Morphological features of these nanocomposite films lead to the appearance of an easy magnetization axis, which is perpendicular to the film plane. A method for enhancement of this effect is suggested and successfully tested. (C) 2005 Pleiades Publishing, Inc.

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Div, Nikolaev Inst Inorgan Chem, Novosibirsk 630090, Russia
ИФ СО РАН

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Denisova, E. A.; Денисова, Елена Александровна; Balaev, A. D.; Балаев, Александр Дмитриевич; Myagkov, V. G.; Мягков, Виктор Григорьевич; Bulina, N. V.; Булина, Наталья Васильевна; Kudashov, A. G.; Okotrub, A. V.
}
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19.

Fabrication and magnetic properties of ni nanospheres encapsulated in a fullerene-like carbon / S. V. Pol [et al.] // Journal of Physical Chemistry B: Biophysical Chemistry, Biomaterials, Liquids, and Soft Matter. - 2005. - Т. 109, № 19. - P. 9495-9498, DOI 10.1021/jp050692j. - Библиогр.: 27 . - ISSN 1520-6106

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Держатели документа:
Department of Chemistry,Center for Advanced Materials and Nanotechnology,Bar-Ilan University
Department of Physics,Bar-Ilan University
L.V. Kirensky Institute of Physics,SB RAS

Доп.точки доступа:
Pol, S. V.; Pol, V. G.; Gedanken, A.; Frydman, A.; Churilov, G. N. ; Чурилов Григорий Николаевич
}
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20.

Fedorov, A. S.
Optimization of the calculations of the electronic structure of carbon nanotubes / A. S. Fedorov, P. B. Sorokin // Phys. Solid State. - 2005. - Vol. 47, Is. 11. - P. 2196-2202, DOI 10.1134/1.2131167. - Cited References: 19 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MOLECULAR-DYNAMICS
ELASTIC PROPERTIES
TUBES
Аннотация: A method is proposed for calculating the electronic structure and physical properties (in particular, Young's modulus) of nanotubes, including single-walled carbon nanotubes. This method explicitly accounts for the periodic boundary conditions for the geometric structure of nanotubes and makes it possible to decrease considerably (by a factor of 10-10(3)) the time needed to calculate the electronic structure with minimum error. In essence, the proposed method consists in changing the geometry of the structure by partitioning nanotubes into sectors with the introduction of the appropriate boundary conditions. As a result, it becomes possible to reduce substantially the size of the unit cell of the nanotube in two dimensions, so that the number of atoms in a new unit cell of the modified nanotube is smaller than the number of atoms in the initial unit cell by a factor equal to an integral number. A decrease in the unit cell size and the corresponding decrease in the number of atoms provide a means for drastically reducing the computational time, which, in turn, substantially decreases with an increase in the degree of partition, especially for nanotubes with large diameters. The results of the calculations performed for carbon and non-carbon (boron nitride) nanotubes demonstrate that the electronic structures, densities of states, and Young's moduli determined within the proposed approach differ insignificantly from those obtained by conventional computational methods. (c) 2005 Pleiades Publishing, Inc.

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Держатели документа:
Russian Acad Sci, Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Sorokin, P. B.; Федоров, Александр Семенович
}
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