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1.

Вид документа : Статья из сборника (выпуск продолж. издания)
Шифр издания :
Автор(ы) : Tsipotan A. S., Aleksandrovsky A. S., Slabko V. V.
Заглавие : Wavelength-controlled manipulation of colloidal quasi-resonant quantum dots under pulsed laser irradiation
Коллективы : Nanophotonics and Micro/Nano Optics
Место публикации : Proc. SPIE: SPIE, 2016. - Vol. 10027: Nanophotonics and Micro/Nano Optics III. - Ст.1002711. - , DOI 10.1117/12.2245386
Примечания : Cited References: 11. - The reported study was funded by RFBR and Government of Krasnoyarsk Territory according to the research project № 16-42-240410 and particularly supported by the Ministry of Education and Science of the Russian Federation (No. 3.1749.2014/K, 214/71 for Siberian Federal University); by RFBR research project No. 14-02-00219 A, 16-32-00129; by SB RAS Program №II.2P № 0358-2015-0012.
Ключевые слова (''Своб.индексиров.''): self-assembly--nanostructures--quantum dots--absorption spectra--dipole-dipole interaction--laser control
Аннотация: Production of nanostructures consisting of semiconductor nanoparticles (NPs) is of interest for number of applications. Development of new methods of NPs' manipulation and aggregation of NPs into nanostructures with pre-defined geometry is also of considerable interest from the fundamental point of view. Under laser irradiation with properly chosen wavelengths excitonic excitations of semiconductor NPs will be induced. Electrodynamical interaction between excited NPs is rather universal and allows formation of wide variety of nanostructures both of homo- and heterogeneous content. Theoretical approach for study of interaction of NPs' ensembles with laser light includes dipole-dipole approximation for NPs' attraction. Experimental results are obtained for TGA stabilized CdTe QDs with the excitonic resonance at 520 nm. Six different samples of the same colloid solution were irradiated at wavelengths from 540 to 570 nm. Modifications of absorption spectra of solutions after irradiation was detected, being most prominent at 555 and 560 nm irradiation wavelengths. Analysis of spectra shows that up to 47% of QDs were assembled into pairs with 10 nm inter-QD distance. Therefore, possibility of precise QDs manipulation via laser-induced electrodynamical interaction is demonstrated.
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Piskorskii V. P., Petrakovskii G. A., Gubin S. P., Kosobudskii I. D.
Заглавие : Metal-polymer magnetic-properties due to dipole-dipole interaction of iron microparticles
Место публикации : Fiz. Tverd. Tela. - 1980. - Vol. 22, Is. 5. - P.1507-1509. - ISSN 0367-3294
Примечания : Cited References: 13
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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zobov V. E., Kucherov M. M.
Заглавие : Concentration dependence of the wings of a dipole-broadened magnetic resonance line in magnetically diluted lattices
Место публикации : J. Exp. Theor. Phys.: Maik Nauka-Interperiodica Publishing, 2017. - Vol. 124, Is. 1. - P.151-158. - ISSN 10637761 (ISSN), DOI 10.1134/S106377611615005X
Примечания : Cited References: 34
Ключевые слова (''Своб.индексиров.''): drug interactions--magnetic fields--magnetic resonance--magnetism--nonlinear equations--optical systems--autocorrelation functions--concentration dependence--high-frequency asymptotics--local field approximations--magnetic resonance line--modulation frequencies--strong static magnetic fields--time autocorrelation functions--autocorrelation
Аннотация: The singularities of the time autocorrelation functions (ACFs) of magnetically diluted spin systems with dipole–dipole interaction (DDI), which determine the high-frequency asymptotics of autocorrelation functions and the wings of a magnetic resonance line, are studied. Using the self-consistent fluctuating local field approximation, nonlinear equations are derived for autocorrelation functions averaged over the independent random arrangement of spins (magnetic atoms) in a diamagnetic lattice with different spin concentrations. The equations take into account the specificity of the dipole–dipole interaction. First, due to its axial symmetry in a strong static magnetic field, the autocorrelation functions of longitudinal and transverse spin components are described by different equations. Second, the long-range type of the dipole–dipole interaction is taken into account by separating contributions into the local field from distant and near spins. The recurrent equations are obtained for the expansion coefficients of autocorrelation functions in power series in time. From them, the numerical value of the coordinate of the nearest singularity of the autocorrelation function is found on the imaginary time axis, which is equal to the radius of convergence of these expansions. It is shown that in the strong dilution case, the logarithmic concentration dependence of the coordinate of the singularity is observed, which is caused by the presence of a cluster of near spins whose fraction is small but contribution to the modulation frequency is large. As an example a silicon crystal with different 29Si concentrations in magnetic fields directed along three crystallographic axes is considered. © 2017, Pleiades Publishing, Inc.
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aplesnin S. S., Udod L. V., Sitnikov M. N., Kretinin V. V., Molokeev M. S., Mironova-Ulmane N.
Заглавие : Dipole glass in chromium-substituted bismuth pyrostannate
Коллективы : Russian Foundation for Basic Research [N 18-52-00009 Bel_a, 18-32-00079 mol_a, 3.5743.2017/6.7]
Место публикации : Mater. Res. Express. - 2018. - Vol. 5, Is. 11. - Ст.115202. - ISSN 2053-1591, DOI 10.1088/2053-1591/aaddd9
Примечания : Cited References: 33. - This study was supported by the Russian Foundation for Basic Research project N 18-52-00009 Bel_a, No 18-32-00079 mol_a, the state order No 3.5743.2017/6.7.
Предметные рубрики: BI4TI3O12 THIN-FILMS
NEUTRON-DIFFRACTION
RAMAN-SPECTROSCOPY
BI2SN2O7
Ключевые слова (''Своб.индексиров.''): dipole glass--permittivity--polarization--raman scattering spectra--structural transition
Аннотация: To establish the existence of dipole glass in the chromium-substituted bismuth pyrostannate solid solutions, the frequency and temperature dependences of the permittivity have been measured in the temperature range of 300–750 K. The field and dynamic dependences of polarization in the temperature range of 80–550 K have been determined. Using the Raman scattering spectra, the absence of inversion center has been established. The maximum of electrical resistance has been found in the vicinity of the dipole moment freezing point. The carrier type has been determined from the thermopower data. The polarization relaxation is shown to be nonexponential. The experimental data are explained within the model of dipole glass in the α- phase and the model of charged crystalline domain walls with the electron-polarization relaxation mechanism above the α–β structural transition.
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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Komogortsev S. V., Fel’k V. A., Iskhakov R. S., Shadrina G. V.
Заглавие : Micromagnetism in a planar system with a random magnetic anisotropy and two-dimensional magnetic correlations
Место публикации : J. Exp. Theor. Phys.: MAIK Nauka-Interperiodica / Springer, 2017. - Vol. 125, Is. 2. - P.323-332. - ISSN 10637761 (ISSN), DOI 10.1134/S1063776117070196
Примечания : Cited References: 68. - This work was supported by the Russian Foundation for Basic Research, project no. 16-03-00256.
Ключевые слова (''Своб.индексиров.''): anisotropy--crystallite size--defects--magnetic domains--magnetic materials--magnetism--magnetization--microstructure--stochastic systems--topology--dipole interaction--dipole interaction energy--magnetic correlation--magnetic microstructures--micromagnetic simulations--micromagnetic structure--random magnetic anisotropies--two-dimensional magnetization--magnetic anisotropy
Аннотация: The hysteresis loops and the micromagnetic structure of a ferromagnetic nanolayer with a randomly oriented local easy magnetization axis and two-dimensional magnetization correlations are studied using a micromagnetic simulation. The properties and the micromagnetic structure of the nanolayer are determined by the competition between the anisotropy and exchange energies and by the dipole–dipole interaction energy. The magnetic microstructure can be described as an ensemble of stochastic magnetic domains and topological magnetization defects. Dipole–dipole interaction suppresses the formation of topological magnetization defects. The topological defects in the magnetic microstructure can cause a sharper change in the coercive force with the crystallite size than that predicted by the random magnetic anisotropy model. © 2017, Pleiades Publishing, Inc.
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6.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : SADREEV A. F., SUKHININ Y. V.
Заглавие : DIPOLE-DIPOLE INTERACTION EFFECT ON RADIATION-FIELD CONDENSATION IN PARAMAGNETIC CRYSTAL-RESONATORS
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1984. - Vol. 26, Is. 9. - P2808-2814. - ISSN 0367-3294
Примечания : Cited References: 13
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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : BULGAKOV E. N.
Заглавие : GROUND-STATE OF A DIPOLE-DIPOLE SYSTEM IN THE FIELD OF SINGLE-ION-ANISOTROPY
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1989. - Vol. 31, Is. 11. - P21-25. - ISSN 0367-3294
Примечания : Cited References: 19
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kucherov M. M., Ponomarenko A. V., Zobov V. E.
Заглавие : On dipole-zeeman cross relaxation in multiple-pulse spin locking
Место публикации : Phys. Status Solidi B. - 1981. - Vol. 107, Is. 2. - P.K159-K162. - ISSN 0370-1972, DOI 10.1002/pssb.2221070263
Примечания : Cited References: 7
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : GEKHT R. S.
Заглавие : COLLECTIVE MODES OF INCOMMENSURATE STRUCTURES IN SYSTEMS WITH DIPOLE INTERACTION
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz.: MEZHDUNARODNAYA KNIGA, 1986. - Vol. 91, Is. 1. - P190-201. - ISSN 0044-4510
Примечания : Cited References: 19
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : GEKHT R. S.
Заглавие : VORTEX INCOMMENSURATE STRUCTURE IN MAGNETICS WITH DIPOLE INTERACTION
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1984. - Vol. 26, Is. 2. - P567-569. - ISSN 0367-3294
Примечания : Cited References: 7
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