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    Kirenskii, L. V.
    Magnetische mehrfachschichten / L. V. Kirenskii, T. P. Izotova, N. M. Salanskii, N. S. Chistyakov // Phys. Status Solidi. - 1966. - Vol. 17, Is. 2. - P. 489-499. - Библиогр.: 20. - Phys. Abstr. - 1967. - Vol. 70, 15146
   Перевод заглавия: Многослойные пленчатые системы
Аннотация: Es werden die Wechselwirkung zweier magnetischer FeNi und FeNiCo Schichten, die durch eine Si02-Schicht getrennt sind und einige Besonderheiten bei der Transmission elektromagnetischer Mikrowellen durch geschichtete dünne Magnetschichten, die durch Si02 getrennt sind, untersucht. Dabei wird gefunden, daß die Koerzitivkraft der Schichten in einem Vielschichtsystem abnimmt. Dieser Effekt wird durch lokale magnetische Wechselwirkung zwischen den magnetischen Schichten erklärt. Die Abnahme der Koerzitivkraft hängt von der Schichtdicke ab und wird durch den wechselnden Charakter der lokalen Wechselwirkung erklärt. Die Transmissions- und Reflexionskoeffizienten wurden gemessen; sie hängen von der Dicke der einzelnen Schichten und von der Gesamtdicke der ferromagnetischen Metallschichten in dem Vielschichtsystem ab. Die Transmissionskoeffizienten für Vielschichtsysteme sind wesentlich größer als bei der einzelnen Schicht. Die Transmission der Mikrowellenenergie durch die Vielschichtsysteme wird im Rahmen der gewöhnlichen Elektrodynamik erklärt.
Это взаимодействие двух магнитных слоев FeNi и FeNiCo, которые отделены друг от друга слоем Si02 и некоторые особенности при передаче электромагнитных микроволн через слоистых магнитных тонких слоев, разделенных Si02 изучены. В этом случае, было обнаружено, что коэрцитивная сила слоев уменьшается в многослойной системе. Этот эффект объясняется локальным магнитным взаимодействием между магнитными слоями. Уменьшение коэрцитивной силы зависит от толщины слоя и объясняется меняющимся характером локального взаимодействия. Были измерены коэффициенты пропускания и отражения; они зависят от толщины каждого слоя и общей толщины ферромагнитных слоев металла в многослойной системе с. Коэффициент пропускания многослойных системах значительно больше, чем в одном слое. Передача микроволновой энергии через многослойные системы объясняется в обычной электродинамики.

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Доп.точки доступа:
Izotova, T. P.; Изотова Т. П.; Salanskii, N. M.; Саланский, Наум Моисеевич; Chistyakov, N. S.; Чистяков, Николай Сергеевич; Киренский, Леонид Васильевич; International colloquium on magnetic thin films(2 ; 1966 ; 25-28 April ; Jena)
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Ignatchenko, V. A.
The spectrum and damping of waves in partially randomized multilayers / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // J. Phys.: Condens. Matter. - 1999. - Vol. 11, Is. 13. - P. 2773-2790, DOI 10.1088/0953-8984/11/13/013. - Cited References: 24 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
SPIN-WAVES
   SEMICONDUCTOR SUPERLATTICES
   LOCALIZATION
   SYSTEMS
Аннотация: The spectrum and damping of waves in partially randomized multilayer structures are calculated. A method of calculation that was proposed and demonstrated earlier, for the model of a superlattice with a harmonic dependence of its material parameters along its axis in the initial state, is extended to the case of a multilayer structure (i.e., a superlattice with sharp interfaces). One- and three-dimensional random modulations of the period are considered, and the correlation function of the superlattice is derived as a series in which each term is a product of a harmonic and a monotonically decaying function. The law of decay of the correlation function is Gaussian for smooth inhomogeneities, and has different forms for one- and three-dimensional short-wavelength inhomogeneities. The spectrum and damping of waves in the superlattice described by this correlation function are found in the weak-coupling approximation in the vicinities of all of the odd Brillouin zone boundaries. Analytical dependences of the main characteristics of the spectrum and damping on the zone number n are obtained. The conditions for the closing of the gaps at the Brillouin zone boundaries are derived, and depend on the dimensionality of the inhomogeneities and the degree of their smoothness.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Irvine, CA 92697 USA
ИФ СО РАН
L V Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
University of California, Irvine, CA 92697 4575, United States

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
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Ignatchenko, V. A.
Spectrum of waves in randomly modulated multilayers / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 1999. - Vol. 59, Is. 1. - P. 42-45, DOI 10.1103/PhysRevB.59.42. - Cited References: 14 . - ISSN 0163-1829

РУБ Physics, Condensed Matter
Рубрики:
SEMICONDUCTOR SUPERLATTICES
LOCALIZATION
SYSTEMS
Аннотация: The spectrum and damping of waves in partially randomized multilayer structures are calculated. A method of calculation which was proposed and demonstrated earlier for the model of a superlattice with a harmonic dependence of its material parameters along its axis in the initial state, is extended here to the case of a multilayer structure (i.e., a superlattice with sharp interfaces). One- and three-dimensional inhomogeneities are considered, and the correlation function of the superlattice is derived. The spectrum and damping of waves in the superlattice described by this correlation function are found in the weak-coupling approximation in the vicinities of all the odd Brillouin zone boundaries. [S0163-1829(99)14501-6].

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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
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Ovchinnikov, S. G.
Application of synchrotron radiation to the study of magnetic materials / S. G. Ovchinnikov // Uspekhi Fiz. Nauk. - 1999. - Vol. 169, Is. 8. - P. 869-887. - Cited References: 93 . - ISSN 0042-1294

РУБ Physics, Multidisciplinary
Рубрики:
X-RAY-SCATTERING
   RESONANCE EXCHANGE SCATTERING
   RARE-EARTH-METALS
   CIRCULAR-DICHROISM
   VALENCE STATES
   CO/PD(111) MULTILAYERS
   ABSORPTION-SPECTRA
   PHASE-TRANSITIONS
   SPIN POLARIZATION
   EDGE STRUCTURE
Аннотация: The recent results of the studies of magnetic materials using synchrotron irradiation are reviewed. The influence of magnetic effects on X-ray scattering is studied for linearly and circularly polarized photons, and effects of magnetic circular dichroism on the spectra of X-ray absorption and photoelectron emission are discussed. It is shown that X-ray magnetooptics techniques provide fine details of crystal and magnetic structures and also make it possible to separate the spin and orbital contributions to the total moment; to obtain element- and position-sensitive information on the magnetic properties of the material; to visualize domains and domain walls; and to probe magnetization reversal dynamics. A comparison of magnetic neutron and X-ray methods is given.

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

Доп.точки доступа:
Овчинников, Сергей Геннадьевич
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Ignatchenko, V. A.
Wave spectrum of multilayers with finite thicknesses of interfaces / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 2000. - Vol. 62, Is. 3. - P. 2181-2184, DOI 10.1103/PhysRevB.62.2181. - Cited References: 24 . - ISSN 0163-1829

РУБ Physics, Condensed Matter
Рубрики:
SPIN
EXCITATIONS
MEDIA
Аннотация: To describe a multilayer structure with arbitrary thicknesses of the interfaces between layers, we introduce a model in which the dependence of a material parameter along the axis of such a superlattice is described by a Jacobian elliptic sine function. Depending on the value of the modulus kappa of the elliptic function, the model describes the limiting cases of multilayers with sharp interfaces (kappa=1, d/l=0, where d is the thickness of the interface, l is the period of the superlattice) and of sinusoidal superlattices (kappa=0, d/l=1/4), as Well as all intermediate situations. We investigate the wave spectrum in such a superlattice. The dependences of the widths of the gaps in the spectrum at the boundaries of ail odd Brillouin zones on the ratio d/l are found. It is shown that the thicknesses of the interfaces can be determined if the experimental value of the relation between the widths of the first gap Delta v(1) and any other gap Delta v(n) is known.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
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Self-propagating high-temperature synthesis in Pt/Co/MgO(001) epitaxial thin films / V. G. Myagkov [et al.] // Phys. Solid State. - 2000. - Vol. 42, Is. 5. - P. 968-972, DOI 10.1134/1.1131321. - Cited References: 26 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PERPENDICULAR MAGNETIC-ANISOTROPY
   LAYERED STRUCTURES
   CO/PT
   MULTILAYERS
   SUPERLATTICES
   PTFE(001)
   GROWTH
   PD/CO
Аннотация: The self-propagating high-temperature synthesis in the two-layer and multilayer Pt / Co(001) thin films has been investigated. It is shown that the initiation of the synthesis occurs at temperatures of 770-820 K. After the synthesis in the two-layer film samples, the PtCo(001) disordered phase exhibits an epitaxial growth at the interface between cobalt and platinum layers. In the multilayer Pt/Co(001) thin films, the self-propagating high-temperature synthesis also brings about the formation of the PtCo(001) disordered phase on the MgO(001) surface. Further annealing at a temperature of 870 K for 4 h results in the transition of the PtCo(001) disordered phase to the ordered phase. Rapid thermal annealing of the Pt/Co(001) multilayer films at a temperature of 1000 K leads to the formation of the CoPt3 phase. The magnetic characteristics change in accord with the structural transformations in Pt/Co film samples. (C) 2000 MAIK "Nauka/Interperiodica".

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

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Li, L. A.; Ли, Людмила Алексеевна; Bykova, L. E.; Быкова, Людмила Евгеньевна; Turpanov, I. A.; Турпанов, Игорь Александрович; Kim, P. D.; Ким, Пётр Дементьевич; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Bondarenko, G. N.; Бондаренко, Галина Николаевна
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Anomalous temperature dependence of the magnetoresistance in Co/Cu multilayers / P. D. Kim [et al.] // Phys. Solid State. - 2000. - Vol. 42, Is. 9. - P. 1688-1690, DOI 10.1134/1.1309452. - Cited References: 5 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
FILMS
Аннотация: An anomalous temperature dependence of magnetoresistance (MR) of Co/Cu multilayer films with a similar to 3 Angstrom thick magnetic layer has been established experimentally. The temperature of the MR maximum T-max is shown to coincide with the Neel temperature. The variation of T-max with the Cu layer thickness follows an oscillatory pattern. (C) 2000 MAIK "Nauka/Interperiodica".

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

Доп.точки доступа:
Kim, P. D.; Ким, Пётр Дементьевич; Khalyapin, D. L.; Turpanov, I. A.; Турпанов, Игорь Александрович; Li, L. A.; Ли, Людмила Алексеевна; Beten'kova, A. Ya.; Бетенькова, Анна Яковлевна; Kan, S. V.
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Solid-phase reactions and the order-disorder phase transition in thin films / V. G. Myagkov [et al.] // Tech. Phys. - 2001. - Vol. 46, Is. 6. - P. 743-748, DOI 10.1134/1.1379645. - Cited References: 28 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
HIGH-TEMPERATURE SYNTHESIS
   ALLOY-FILMS
   KINETICS
   MULTILAYERS
   SYSTEMS
   GROWTH
Аннотация: A comparative analysis was carried out of the initiation temperatures of solid-phase reactions in bilayer solid films and the Kurnakov temperatures of the phases forming in the reaction products. It has been shown that in superstructures where ordering is usually observed, the Kurnakov temperature coincides with the initiation temperature of the solid-phase reactions if no other solid-phase structural transformation precedes the order-disorder phase transition in the state diagram. A rule was proposed by which pairs of films capable of entering into solid-phase reactions and their initiation temperatures can be determined. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Inst. of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Bykova, L. E.; Быкова, Людмила Евгеньевна; Bondarenko, G. N.; Бондаренко, Галина Николаевна; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Myagkov, F. V.
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Influence of magnetic field on the interlayer interaction in (Co/Si/Gd/Si)(n) films / G. S. Patrin [et al.] // JETP Letters. - 2002. - Vol. 75, Is. 3. - P. 159-161, DOI 10.1134/1.1469505. - Cited References: 12 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
MULTILAYERS
SPACERS
Аннотация: A singularity sensitive to the external magnetic field was observed in the temperature dependences of the magnetization of multilayer (Co/Si/Gd/Si)(20) films in the vicinity of compensation temperature. Possible mechanisms responsible for the unusual behavior of the magnetization are discussed. (C) 2002 MAIK "Nauka / Interperiodica".

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Держатели документа:
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
Ural State Univ, Ekaterinburg 620083, Russia
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Krasnoyarsk State University, Krasnoyarsk, 660041, Russian Federation
Ural State University, pr. Lenina 51, Yekaterinburg, 620083, Russian Federation
Kirenskii Inst. of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Vas'kovskii, V. O.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Svalov, A. V.
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10.

Ignatchenko, V. A.
Effects of one- and three-dimensional inhomogeneities on the wave spectrum of multilayers with finite interface thicknesses / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 2002. - Vol. 65, Is. 2. - Ст. 24207, DOI 10.1103/PhysRevB.65.024207. - Cited References: 24 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
PERIODIC MULTILAYERS
   SPIN-WAVES
   LOCALIZATION
   SUPERLATTICES
   SYSTEMS
   DISORDER
   AVERAGE
   MEDIA
Аннотация: To describe a partially randomized multilayer structure with arbitrary thicknesses of the interfaces between layers, we introduce a model in which the dependence of a material parameter along the axis of such a Superlattice is described by a Jacobian elliptic sine function with a random spatial modulation of its period. Both one- and three-dimensional inhomogeneities of the period are considered. We develop the correlation function for this model, and investigate the dispersion law and damping of averaged waves in this superlattice. The dependencies of the widths of the gaps in the spectrum and the damping at the boundaries of all odd Brillouin zones, on the thicknesses of the interfaces, and on the dimensionality, intensity, and correlation wave number of the inhomogeneities are found. It is shown that experimental investigations of the widths of the gaps and damping for several Brillouin zones could permit, in principle, determining all parameters of the superlattice as well as the parameters of the inhomogeneities from these spectral characteristics.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
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