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Churilov, G. N.
Two new discharges for production of fullerenes and nanotubes / G. N. Churilov // Progress in fullerene research / ed. H. Kuzmany [et al.]. - Singapore ; New Jersey ; London : World Scientific, 1994. - P. 135-138 . - ISBN 978-9810218874. - ISBN 981-02-1887-7

Доп.точки доступа:
Kuzmany, Hans \ed.\; Fink, Jorg \ed.\; Mehring, Michael \ed.\; Roth, Siegmar \ed.\; Чурилов, Григорий Николаевич; International Winterschool on Electronic Properties of Novel Materials(2 ; 1994 ; 5-12 March ; Kirchberg / Tyrol, Austria)
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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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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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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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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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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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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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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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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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10.

Reply to "Comment on 'Unusual magnetic transitions and nature of magnetic resonance spectra in oxide glasses containing gadolinium' " / J. . Kliava [et al.] // Phys. Rev. B. - 2006. - Vol. 74, Is. 2. - Ст. 26404, DOI 10.1103/PhysRevB.74.026404. - Cited References: 8 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
WALLED CARBON NANOTUBES
HYDROGEN
Аннотация: In this Reply we show that, contrary to the suggestion of Dubroca, Hack, and Hummel (DHH), the feature observed at ca. 55 K in the magnetic susceptibility of gadolinium-containing oxide glasses [as in our earlier paper, Kliava Phys. Rev. B 71, 104406 (2005)] cannot be due to a magnetic transition in oxygen contaminant. In support of this statement, we supply transformed data at low Gd content as well as magnetization curves for a series of glasses containing dysprosium oxide measured with the same superconducting quantum interference device as in our earlier paper. In all these cases the feature in question is absent. Thus, our previous assignment of the 55 K feature to a paramagnetic-to-ferromagnetic transition in Gd clusters in the glass remains the only one consistent with the experimental results.

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Держатели документа:
Univ Bordeaux 1, CPMOH, UMR 5798, CNRS, F-33405 Talence, France
Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
RAS, SB, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
SI Vavilov State Opt Inst, St Petersburg 199034, Russia
Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
ИФ СО РАН
CPMOH, UMR 5798 CNRS, Universite Bordeaux-I, 33405 Talence Cedex, France
Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel
L. V. Kirensky Institute of Physics SB RAS, Krasnoyarsk 660036, Russian Federation
S. V. Vavilov State Optical Institute, St. Petersburg 199034, Russian Federation
Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel

Доп.точки доступа:
Kliava, J.; Malakhovskii, A. V.; Малаховский, Александр Валентинович; Edelman, I. S.; Эдельман, Ирина Самсоновна; Potseluyko, A. M.; Melnikova, S. V.; Мельникова, Светлана Владимировна; Petrakovskaja, E. A.; Петраковская, Элеонора Анатольевна; Zarubina, T. V.; Petrovskii, G.; Bruckental, I.; Yeshurun, Y.
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