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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Anistratov A. T., Vorobev A. V., Grekhov Y. N., Malyshevskii N. G.
Заглавие : Dark conductivity and photoconductivity of germanium-sillenite crystals doped with aluminum and boron
Место публикации : Fiz. Tverd. Tela. - 1980. - Vol. 22, Is. 6. - P.1865-1867. - ISSN 0367-3294
Примечания : Cited References: 6
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Churilov G. N., Alikhanyan A. S., Nikitin M. I., Glushchenko G. A., Vnukova N. G., Bulina N. V., Emelina A. L.
Заглавие : Synthesis and investigation of boron-doped fullerene and scandium-containing fullerene
Место публикации : Tech. Phys. Lett.: AMER INST PHYSICS, 2003. - Vol. 29, Is. 2. - P168-170. - ISSN 1063-7850, DOI 10.1134/1.1558758
Примечания : Cited References: 7
Аннотация: We report on the plasmachemical synthesis of fullerene derivatives containing boron and scandium. The synthesis was conducted at atmospheric pressure in a carbon-helium plasma jet generated by an RF arc. (C) 2003 MAIK "Nauka / Interperiodica".
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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vasil'eva I. G., Dovlitova L. S., Zajkovskij V. I., Malakhov V. V., Edel'man I. S., Stepanov A. S., Aleksandrov K. S.
Заглавие : Real composition and structure of manganese ferrite nanoparticles dispersed in the K-Al-B-O glasses
Место публикации : Dokl. Akad. Nauk. - 2005. - Vol. 401, Is. 3. - P.349-352. - ISSN 0869-5652
Ключевые слова (''Своб.индексиров.''): aluminum--boron compounds--ferrite--manganese--nanostructured materials--particles (particulate matter)--structure (composition)--borate glasses--exchange interaction--glass
Аннотация: For the first time the problem of determining real composition and structure of manganese ferrite nanoparticles dispersed borate glasses is solved using differentiating dissolution and high-resolution X-ray electron microscopy techniques. For the first time the nanosize effect of aluminum incorporation in manganese ferrite composition is experimentally shown, thus directly confirming the hypothesis of Al participation in exchange interaction between paramagnetic Fe and Mn ions as diamagnetic diluter.
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Chernozatonskii L. A., Sorokin P. B., Yakobson B. I.
Заглавие : New boron barrelenes and tubulenes
Место публикации : JETP Letters. - 2008. - Vol. 87, Is. 9. - P.489-493. - ISSN 0021-3640, DOI 10.1134/S0021364008090087
Примечания : Cited References: 21
Предметные рубрики: MOLECULAR-DYNAMICS
NANOTUBES
TRANSITION
SIMULATION
Аннотация: The structure of a new class of boron nanostructures-barrelenes and tubulenes-based on a boron atomic lattice constructed by the alternating B-atomic polygons with central atoms and without them has been proposed and their properties have been described. Ab initio density functional calculations have been performed for the energy and electronic structure of the fullerene-barrelene-nanotube series based on the lowest energy fullerene B-80. It has been shown that the energy and band gap of a barrelene are lower than the respective quantities of the corresponding fullerene and tend to the respective values for nanotubes in the infinite limit. It has been shown that there are isomers of nanotubes of the same type that are significantly different in symmetry and electronic properties: a semiconductor (C-5v symmetry) and a metal (D-5h symmetry).
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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kazak N. V., Gavriliuk A. G., Ovchinnikov S. G., Lyubutin I. S., Edel'man I. S., Rudenko V. V.
Заглавие : Evolution of the optical absorption spectra and electronic structure of the VBO3 crystal under high pressures
Коллективы : Russian Foundation for Basic Research [07-02-00490a, 08-02-00897a, 08-02-90708 mob_st, 09-02-00171a, 07-02-00226]; Federal Agency for Science and Innovation [MK-4278.2008.2, 01.164.12.HB11]; Russian Academy of Sciences
Место публикации : J. Exp. Theor. Phys. - 2009. - Vol. 109, Is. 3. - P.455-465. - ISSN 1063-7761, DOI 10.1134/S1063776109090118
Примечания : Cited References: 27. - We would like to thank A. D. Vasil'ev for performing the X-ray diffraction investigations.This study was supported by the Russian Foundation for Basic Research (project nos. 07-02-00490a, 08-02-00897a, 08-02-90708 mob_st, 09-02-00171a, and 07-02-00226), the Federal Agency for Science and Innovation (Rosnauka) (project no. MK-4278.2008.2, contract no. 01.164.12.HB11), and the Branch of Physical Sciences of the Russian Academy of Sciences within the framework of the program "Strongly Correlated Electrons."
Предметные рубрики: BAND-STRUCTURE
PHASE-TRANSITION
FEBO3
FE1-XVXBO3
STATE
MODEL
Ключевые слова (''Своб.индексиров.''): charge-transfer excitations--d-d transitions--ferromagnetic semiconductor--fundamental absorption edge--high pressure--optical absorption spectrum--absorption--boron--boron compounds--electronic properties--electronic structure--optical materials--oxygen--vanadium--light absorption
Аннотация: The evolution of optical absorption spectra of the ferromagnetic semiconductor VBO3 under high pressures up to 70 GPa has been investigated. It has been revealed that, below the fundamental absorption edge (E (g1) = 3.02 eV), the spectra exhibit a series of bands V1 (2.87 eV), V2 (2.45 eV), V3 (1.72 eV), and V4(1.21 eV) due to the d-d transitions in the V3+ ion and charge-transfer excitations. A model of the electronic structure of the VBO3 semiconductor has been constructed. This model combines the one-electron description of the s and p states of boron and oxygen and the many-electron description of the vanadium d states.
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6.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sorokin P. B., Avramov P.V., Yakobson B.I., Chernozatonskii L.A.
Заглавие : Magnesium Boride Nanotubes: Relative Stability and Atomic and Electronic Structure
Место публикации : J. Phys. Chem. C. - 2010. - Vol. 114, Is. 11. - P.4852-4856. - MAR 25. - ISSN 1932-7447, DOI 10.1021/jp9112014
Примечания : Cited Reference Count: 38. - Гранты: P.B.S. and B.I.Y. acknowledge support by the Basic Energy Sciences division of the Department of Energy, award DE-SC0001479. L.A.C. was supported by the Russian Academy of Sciences, program No. 21. P.V.A ad P.B.S. also acknowledge the collaborative RFBR-JSPS grant No. 09-02-92107-R Phi. We are grateful to the Joint Supercomputer Center of the Russian Academy of Sciences for the possibility of using a cluster computer for quantum chemical calculations. The geometry of all presented structures was visualized by commercial ChemCraft software (http://www.chemcraftprog.com).Финансирующая организация: Basic Energy Sciences division of the Department of Energy [DE-SC0001479]; Russian Academy of Sciences [21]; RFBR-JSPS [09-02-92107-RPhi]
Предметные рубрики: BORON
PSEUDOPOTENTIALS
FULLERENES
SIMULATION
FORM
Ключевые слова (''Своб.индексиров.''): basic composition--bending behavior--comparative studies--diborides--energy analysis--energy minima--magnesium atom--magnesium boride--mgb2--relative stabilities--semiconducting behavior--small-diameter--staggered configuration--sub-lattices--bending (forming)--borides--boron--electronic properties--electronic structure--energy management--magnesium--nanotubes--density functional theory
Аннотация: A comparative study of file energies and the electronic structure of MgBx nanotubes is performed within the framework of the density functional theory. Different basic compositions (x = 2 for diboride and x = 3 for triboride) and different diameters (3 angstrom D 18 angstrom), as well the exterior, interior, and staggered placement of magnesium atoms, are considered. Energy analysis reveals a nontrivial bending behavior of the MgB2 sheets. such that the tubes with exterior and staggered configurations display the energy minima at certain small diameters (of the boron cage sublattice). The semiconducting behavior of narrow MgB2 nanotubes with exterior Mg position was observed.
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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Serzhantova M. V., Kuzubov A. A., Fedorov A. S., Krasnov P. O., Tomilin F. N.
Заглавие : Theoretical study of the influence of vacancies on the electronic structure of a hexagonal boron nitride monolayer
Место публикации : J. Exp. Theor. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2011. - Vol. 112, Is. 4. - P664-667. - ISSN 1063-7761, DOI 10.1134/S1063776111030150
Примечания : Cited References: 19
Предметные рубрики: INITIO MOLECULAR-DYNAMICS
TRANSITION
ALGORITHM
METALS
ENERGY
Ключевые слова (''Своб.индексиров.''): defect type--divacancies--forbidden band--hexagonal boron nitride--inhomogeneous distribution--nitrogen vacancies--spin densities--theoretical study--vacant levels--boron nitride--defects--deformation--density functional theory--electronic properties--electronic structure--magnetic moments--monolayers--nitrides--boron
Аннотация: The influence of boron and nitrogen vacancies and divacancies on the electronic structure of a hexagonal boron nitride h-BN monolayer is studied. In the presence of vacancies in the structure, the introduced states appear in the forbidden band. The position of an introduced state with respect to the upper occupied level and the lower vacant level depends on deformation. Calculations show that, depending on the defect type and the magnitude of the applied deformation, the introduced state can be both localized and not localized on atoms surrounding the defect. When the state is localized in the system, the inhomogeneous distribution of the spin density is observed, resulting in the appearance of the magnetic moment in the system.
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kuzubov A. A., Serzhantova M. V., Fedorov A. S., Tomilin F. N., Kozhevnikova T. A.
Заглавие : Theoretical Study of Vacancies and Adatoms in White Graphene
Разночтения заглавия :авие SCOPUS: Theoretical study of vacancies and adatoms in white graphene
Место публикации : JETP Letters. - 2011. - Vol. 93, Is. 6. - P.335-338. - ISSN 0021-3640, DOI 10.1134/S0021364011060051
Примечания : Cited References: 35
Предметные рубрики: HEXAGONAL BORON-NITRIDE
INITIO MOLECULAR-DYNAMICS
BRILLOUIN LIGHT-SCATTERING
BN NANOTUBES
AB-INITIO
ELASTIC PROPERTIES
MONOLAYER
GRAPHITE
COMPRESSION
TRANSITION
Аннотация: The stability of the B and N atomic vacancies and divacancies in an h-BN monolayer deformed by 2 and 4% along one of the axes has been investigated. It has been established that the N atomic vacancies are most stable; their concentration is insignificant and does not affect the properties of white graphene. The number of vacancies depends on the mobility of N and B atoms on the layer surface; therefore, the probability of recombination with the vacancies has been estimated. It has been revealed that the energy barrier for the migration of the B and N adatoms is about 0.23 and 1.23 eV, respectively. In view of such a low barrier for the B adatom, this type of adatoms will quite rapidly move over the surface and recombine with vacancies, in contrast to the N adatoms. Therefore, only nitrogen atom vacancies can exist in the h-BN monolayer grown by the methods, where the adatoms could possibly appear on the surface.
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9.

Вид документа : Статья из журнала
Шифр издания : 538.915/Т 33
Автор(ы) : Сержантова, Мария Викторовна, Кузубов, Александр Александрович, Федоров, Александр Семенович, Томилин, Феликс Николаевич, Краснов, Павел Олегович
Заглавие : Теоретическое исследование влияния деформации на электронную структуру монослоя гексагонального нитрида бора
Место публикации : Вестник Сибирского государственного аэрокосмического университета им. академика М.Ф. Решетнева. - Красноярск: Сибирский государственный аэрокосмический университет имени академика М.Ф. Решетнева, 2011. - № 3. - С. 150-155. - ISSN 1816-9724
ГРНТИ : 29.19
УДК : 538.915
Предметные рубрики:
Ключевые слова (''Своб.индексиров.''): адатомы--adatoms--hexagonal boron nitride monolayer (h-bn)--density functional theory (dft)--electronic structure--vacancies--монослой гексагонального нитрида бора (h-bn)--теория функционала плотности (dft)--электронная структура--вакансии
Аннотация: Работа посвящена исследованию влияния деформации на электронную структуру и свойства монослоя гексагонального нитрида бора, а также изучению поведения адатомов бора и азота на поверхности монослоя.Work is devoted research of influence of deformation on electronic structure and properties of a monolayer hexagonal boron nitride, and also to behavior studying adatoms of boron and nitrogen on a monolayer surface.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Avramov P. V., Kuzubov A. A., Sakai, Seiji, Ohtomo, Manabu, Entani, Shiro, Matsumoto, Yoshihiro, Naramoto, Hiroshi, Eleseeva N. S.
Заглавие : Contact-induced spin polarization in graphene/h-BN/Ni nanocomposites
Место публикации : J. Appl. Phys.: American Institute of Physics, 2012. - Vol. 112, Is. 11. - Ст.114303. - P. - ISSN 0021-8979, DOI 10.1063/1.4767134
Примечания : Cited References: 47. - This work was supported by JAEA Research fellowship (P.V.A.). P.V.A. also acknowledges JAEA ASRC and Molecular Spintronics Group for hospitality and fruitful collaboration. The authors are grateful to the ICS SB RAS and SFU CC (Krasnoyarsk), ISC RAS and MSU CRC, (SKIF MSU "Chebyshev", Moscow) for computer resources. This work was partially supported by the RFBR grant 12-02-31417.
Предметные рубрики: HEXAGONAL BORON-NITRIDE
TRILAYER GRAPHENE
NI(111) SURFACE
GRAPHITE
APPROXIMATION
SPINTRONICS
DIFFRACTION
SIMULATION
SUBSTRATE
CARBON
Аннотация: Atomic and electronic structure of graphene/Ni(111), h-BN/Ni(111) and graphene/h-BN/Ni(111) nanocomposites with different numbers of graphene and h-BN layers and in different mutual arrangements of graphene/Ni and h-BN/Ni at the interfaces was studied using LDA/PBC/PW technique. Using the same technique corresponding graphene, h-BN and graphene/h-BN structures without the Ni plate were calculated for the sake of comparison. It was suggested that C-top:C-fcc and N-top:B-fcc configurations are energetically favorable for the graphene/Ni and h-BN/Ni interfaces, respectively. The Ni plate was found to induce a significant degree of spin polarization in graphene and h-BN through exchange interactions of the electronic states located on different fragments. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4767134]
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