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    Орлов, Виталий Александрович.
    Многомодовые колебания намагниченности в soft/hard пленках / В. А. Орлов, Г. С. Патрин // Магнитные материалы. Новые технологии : тез. докл. VIII Байкал. междунар. конф. BICMM-2018 / чл. прогр. ком. R. S. Iskhakov [et al.]. - Иркутск, 2018. - С. 85-86. - Библиогр.: 5 . - ISBN 978-5-00133-051-6
   Перевод заглавия: Multimode oscillations of magnetization in soft/hard films

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Материалы конференции,
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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Iskhakov, R. S. \чл. прогр. ком.\; Исхаков, Рауф Садыкович; Ovchinnikov, S. G. \чл. прогр. ком.\; Овчинников, Сергей Геннадьевич; Aplesnin, S. S. \чл. прогр. ком.\; Аплеснин, Сергей Степанович; Balaev, D. A. \чл. прогр. ком.\; Балаев, Дмитрий Александрович; Патрин, Геннадий Семёнович; Patrin, G. S.; Orlov, V. A.; Байкальская международная конференция "Магнитные материалы. Новые технологии"(8 ; 2018 ; авг. ; 24-28 ; Иркутск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(8 ; 2018 ; авг. ; 24-28 ; Иркутск); "Magnetic materials. New tecnologies", Baikal International Conference(8 ; 2018 ; Aug. 24-28 ; Irkutsk); Иркутский государственный университет
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    Орлов, Виталий Александрович.
    Колебания намагниченности в паре взаимодействующих нанолент / В. А. Орлов, А. А. Иванов, И. Н. Орлова // Магнитные материалы. Новые технологии : тез. докл. VIII Байкал. междунар. конф. BICMM-2018 / чл. прогр. ком. R. S. Iskhakov [et al.]. - Иркутск, 2018. - С. 89-90. - Библиогр.: 1 . - ISBN 978-5-00133-051-6
   Перевод заглавия: Magnetic momentum oscillations in a couple of interactive nanostripes

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Iskhakov, R. S. \чл. прогр. ком.\; Исхаков, Рауф Садыкович; Ovchinnikov, S. G. \чл. прогр. ком.\; Овчинников, Сергей Геннадьевич; Aplesnin, S. S. \чл. прогр. ком.\; Аплеснин, Сергей Степанович; Balaev, D. A. \чл. прогр. ком.\; Балаев, Дмитрий Александрович; Иванов, Анатолий Александрович; Орлова, И. Н.; Orlov, V. A.; Байкальская международная конференция "Магнитные материалы. Новые технологии"(8 ; 2018 ; авг. ; 24-28 ; Иркутск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(8 ; 2018 ; авг. ; 24-28 ; Иркутск); "Magnetic materials. New tecnologies", Baikal International Conference(8 ; 2018 ; Aug. 24-28 ; Irkutsk); Иркутский государственный университет
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    Vyunishev, A. M.
    Frequency doubling in periodic nonlinear photonic crystals mediated by random layers / A. M. Vyunishev, A. S. Chirkin // Opt. Lett. - 2017. - Vol. 42, Is. 6. - P. 1189-1192, DOI 10.1364/OL.42.001189. - Cited References: 26. - Council of the President of the Russian Federation (MK-2908.2015.2); Russian Foundation for Basic Research (RFBR) (15-02-03838). The authors thank I. S. Baturin for fruitful discussions and D. P. Agapov for help. . - ISSN 0146-9592
   Перевод заглавия: Удвоение частоты в периодических нелинейных фотонных кристаллах разделенных случайными слоями
Кл.слова (ненормированные):
Conversion efficiency -- Crystal structure -- Efficiency -- Photonic crystals -- Ferroelectric crystal -- Frequency-doubling -- Intensity oscillations -- Intermediate layers -- Nonlinear photonic crystals -- Periodically poled structures -- Second harmonics -- Statistical frequency -- Frequency doublers
Аннотация: We study the frequency doubling in a quadratic nonlinear photonic crystal consisting of periodically poled structures mediated by uniform layers with random lengths. These structures can be formed by new local impact methods for ferroelectric crystal structuring. The statistical frequency doubling theory is developed for such structures. The effect of the number of random layers and variation in their thicknesses on the second-harmonic conversion efficiency is clarified. It is demonstrated that a proper choice of the intermediate layer thickness can enhance or suppress the conversion efficiency. A new type of the Makerfringes-like second-harmonic intensity oscillations is predicted. © 2017 Optical Society of America.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Department of Photonics and Laser Technology, Siberian Federal University, Krasnoyarsk, Russian Federation
Faculty of Physics and International Laser Center, M. V. Lomonosov Moscow State University, Moscow, Russian Federation

Доп.точки доступа:
Chirkin, A. S.; Вьюнышев, Андрей Михайлович
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Valkov, V. V.
Influence of antiferromagnetic ordering on the de Haas-van Alphen effect in a semimetal / V. V. Valkov, D. M. Dzebisashvili // Phys. Solid State. - 1997. - Vol. 39, Is. 2. - P. 179-184, DOI 10.1134/1.1129779. - Cited References: 19 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
HIGH-TEMPERATURE SUPERCONDUCTORS
   NORMAL STATE
   OSCILLATIONS
   CEAS
Аннотация: The distinctive characteristics of the de Haas-van Alphen effect in semimetals with antiferromagnetic long-range order are investigated theoretically. It is shown that the transition of the subsystem of localized spins from the canted antiferromagnetic phase to the ferromagnetic phase is accompanied by an abrupt change in the ''frequency'' of the magnetization oscillations of band carriers M-similar to. In the below-critical range of magnetic fields, M-similar to is not a function periodic in 1/H. Significantly, the additional contribution to the phase of the oscillatory factors is proportional to H-2 and is determined entirely by quantum fluctuations in the antiferromagnetic subsystem. (C) 1997 American Institute of Physics.

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Держатели документа:
L.V. Kirenskii Inst. of Phys., Siberian Br. Russ. Acad. of Sci., 660036 Krasnoyarsk, Russian Federation
ИФ СО РАН

Доп.точки доступа:
Dzebisashvili, D. M.; Дзебисашвили, Дмитрий Михайлович; Val'kov, V. V.
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Val'kov, V. V.
The magnetoelastic mechanism of singlet phase formation in a two-dimensional quantum antiferromagnet / V. V. Val'kov, V. A. Mitskan, G. A. Petrakovskii // J. Exp. Theor. Phys. - 2006. - Vol. 102, Is. 2. - P. 234-247, DOI 10.1134/S106377610602004X. - Cited References: 18 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
GROUND-STATE
   SPIN
   TRANSITION
   CUGEO3
   MODEL
Кл.слова (ненормированные):
Crystal lattices -- Elasticity -- Mathematical models -- Oscillations -- Phase diagrams -- Phase transitions -- Quantum theory -- Two dimensional -- Atomic representation -- Magnetoelastic mechanism -- Quantum antiferromagnets -- Singlet phase formation -- Antiferromagnetic materials
Аннотация: A model describing the second-order phase transition with respect to the magnetoelastic coupling parameter from the anti ferromagnetic (AFM) to the singlet state in a two-dimensional quantum magnet on a square lattice is proposed. The spectrum of elementary excitations in the singlet and AFM phases is calculated using an atomic representation, and the evolution of transverse and longitudinal branches of this spectrum is studied in the vicinity of the transition point. It is established that the AFM to singlet phase transition is related to softening of the longitudinal branch of oscillations. In the singlet phase, the gap plays the role of a parameter characterizing the distance to the phase transition point. It is shown that the spectrum of transverse oscillations in the AFM phase corresponds to the Goldstone boson. Based on an analysis of the stability of the spectrum of elementary excitations, a phase diagram is constructed that determines the regions of the existence of phases with plaquette-deformed lattices.

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Держатели документа:
Russian Acad Sci, Siberian Div, Inst Phys, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660074, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660075, Russia
ИФ СО РАН
Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Krasnoyarsk State Technical University, Krasnoyarsk, 660074, Russian Federation
Krasnoyarsk State University, Krasnoyarsk, 660075, Russian Federation

Доп.точки доступа:
Mitskan, V. A.; Мицкан, Виталий Александрович; Petrakovskii, G. A.; Петраковский, Герман Антонович; Вальков, Валерий Владимирович
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Val'kov, V. V.
Renormalization of Energy Structure and Oscillation Period in the de Haas-van Alphen Effect at the Strong Intersite Coulomb Interaction / V. . Val'kov, M. . Korovushkin // J. Phys. Soc. Jpn. - 2011. - Vol. 80, Is. 1. - Ст. 14703. - P., DOI 10.1143/JPSJ.80.014703. - Cited References: 36. - This study was supported by the program "Quantum Physics of Condensed Matter'' of the Presidium of the Russian Academy of Sciences (RAS), the Russian Foundation for Basic Research (project No. 10-02-00251), the Federal goal-oriented program Scientific Brainpower of the Russian Innovations 2009-2013, and the Siberian Division of RAS (Interdisciplinary Integration project No. 53). One of the authors (M. K.) would like to acknowledge the support of the Lavrentiev's Competition of the Siberian Division of RAS. The authors are grateful to the Physical Society of Japan for financial support in publication. . - ISSN 0031-9015

РУБ Physics, Multidisciplinary
Рубрики:
T-C SUPERCONDUCTOR
   EXTENDED HUBBARD-MODEL
   CUPRATE SUPERCONDUCTORS
   ELECTRON CORRELATIONS
   QUANTUM OSCILLATIONS
   FERMI-SURFACE
   OXIDES
   TEMPERATURE
   STATE
   BANDS
Кл.слова (ненормированные):
strongly correlated electron systems -- cuprate superconductors -- intersite Coulomb interaction -- t-V model -- de Haas-van Alphen effect -- Cuprate superconductors -- De Haas-van Alphen effect -- Intersite Coulomb interaction -- Strongly correlated electron systems -- T-V model
Аннотация: The effect of strong intersite Coulomb correlations on the formation of the electron structure of the t-V model has been studied. A qualitatively new result indicating the occurrence of a split-off band of Fermi states has been obtained. The spectral intensity of this band increases with an increase in doping level and is determined by the mean-square fluctuation of occupation numbers. This results in the transformation of the energy structure and the integrated density of states and in a further decrease in state occupation in the quasimomentum space near the Fermi level as compared with Hubbard renormalization. It has been shown that this effect leads to an increase in the area of the quasimomentum space part limited by the Fermi contour and is important for the analysis of the de Haas-van Alphen oscillations in cuprate superconductors.

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Держатели документа:
[Val'kov, Valery
Korovushkin, Maxim] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Val'kov, Valery] Siberian Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
L. V. Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation
Siberian Aerospace University, Krasnoyarsk 660014, Russian Federation

Доп.точки доступа:
Korovushkin, M. M.; Коровушкин, Максим Михайлович; Вальков, Валерий Владимирович
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Val'kov, V. V.
Quantum temperature fluctuations in the magnetization of antiferromagnetic semimetals / V. V. Val'kov, D. M. Dzebisashvili // Phys. Solid State. - 1998. - Vol. 40, Is. 9. - P. 1523-1529, DOI 10.1134/1.1130591. - Cited References: 19 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
FERMI-SURFACE
   OSCILLATIONS
   SUPERCONDUCTOR
   CEAS
Аннотация: It is shown that in semimetallic, low-temperature antiferromagnetic materials located in a quantizing magnetic field, the part of the band magnetization M similar to which oscillates in H can have a nonmonotonic temperature dependence. This non-Fermi liquid behavior will show up experimentally in the form of quantum temperature fluctuations of the magnetization when the decrease with rising temperature is oscillatory, rather than the usual monotonic decrease. It is shown that the magnetization from an individual spin electron (or hole) subband has the form of weakly damped periodic oscillations as a function of T-2. This result makes it possible to develop an efficient method for studying the electronic structure of antiferromagnetic semimetals based on an examination of the quantum temperature fluctuations. Calculations show that quantum temperature fluctuations can be observed, for example, in the cerium monopnictides CeP and CeAs, which are strongly correlated, antiferromagnetic, compensated semimetals with low Neel temperatures. (C) 1998 American Institute of Physics. [S1063-7834(98)02409-5].

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Dzebisashvili, D. M.; Дзебисашвили, Дмитрий Михайлович; Вальков, Валерий Владимирович
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Val'kov, V. V.
On the anomalous H dependence of the amplitude of deHaas-vanAlphen oscillations in CeCu2Si2 / V. V. Val'kov, D. M. Dzebisashvili // JETP Letters. - 1998. - Vol. 67, Is. 4. - P. 289-294, DOI 10.1134/1.567615. - Cited References: 8 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary

Аннотация: The de Haas-van Alphen effect is studied in heavy-fermion antiferromagnets near the spin-flip transition is studied. It is shown that the strong increase occurring in the amplitude of oscillations near the spin-flip point in an increasing magnetic field, as observed experimentally in CeCu2Si2, can be explained by strong single-site correlations and magnetic ordering in the subsystem of localized electronic states. (C) 1998 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Phys, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Dzebisashvili, D. M.; Дзебисашвили, Дмитрий Михайлович; Вальков, Валерий Владимирович
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Val'kov, V. V.
Magnetopolaron states of a spin-correlated antiferromagnet in the neighborhood of the spin-glass transition / V. V. Val'kov, D. M. Dzebisashvili // Phys. Solid State. - 1998. - Vol. 40, Is. 2. - P. 282-286, DOI 10.1134/1.1130293. - Cited References: 20 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
OSCILLATIONS
CEAS
Аннотация: The problem of the spectrum of magnetopolaron states of a strongly correlated conducting canted antiferromagnet is solved. The approach used to study the spectrum is based on an atomic representation and a diagram technique for Hubbard operators. This approach makes it possible to include strong intra-ion interactions in a first-principles way, and to obtain the dispersion equation for the magnetopolaron spectrum for arbitrary values of the magnitude of the spin, temperature, and magnetic field. In the vicinity of the spin-flip transition an analytic expression is obtained for the spectrum of magnetopolaron states that goes beyond the framework of the quasiclassical approximation. (C) 1998 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660000, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Dzebisashvili, D. M.; Дзебисашвили, Дмитрий Михайлович; Вальков, Валерий Владимирович
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10.

Tunable Narrow-band Filtering, Parametric Amplification and Mirrorless Oscillations in Doped Negative - index Materials / Popov A.K., Myslivets S.A., Shalaev V.M. // Proceedings of NATO Advance Research Workshop & META'08 : Marrakesh - Morocco, 7-10 May 2008. - Paris : LGEP-SUPELE C. - p. 580-585

Доп.точки доступа:
Popov, A. K.; Попов, Александр Кузьмич; Myslivets, S. A.; Мысливец, Сергей Александрович; Shalaev, V. M.; Шалаев, Владимир Михайлович
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