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1.
Инвентарный номер: нет.
   
   P 93

    Protsenko, S. P.
    Tensile Strength of two-dimensional Lennard-Jones Crystals. 1. Static Aspect [] : static Aspect / S. P. Protsenko, V. G. Baidakov, A. Y. Komarov // Journal of Structural Chemistry (Russia). - 1995. - V.36, Is.1. - С. 36-42
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CRYSTAL LENNARD-JONES -- ASPECT STATIC -- CRYSTAL TWO-DIMENSIONAL -- DEPENDENCE OF TEMPERATURE -- ISOTHERMS
Аннотация: The molecular dynamic method is employed to study the thermodynamic perameters of a two-dimensional Lennard-Jones crysyal at negative pressures. The calculations are performed for five isotherms. The lowest temperature approaches absolute zero, and the highest temperature is 35% lower that than of the triple point. The limits of attainable tension and the thermodynamic stability of the crystal as well as the lifetimes of the ultimately strained states and the relaxation times in a disordering in the crystal are estimated. The thermal characteristics of disordering in the crystalline state are revealed and investigated

\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Journal of Structural Chemistry\\1995, V. 36, N 1, p.36.pdf
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2.
Инвентарный номер: нет.
   
   P 93

    Protsenko, S. P.
    Tensile Strength of two-dimensional Lennard-Jones Crystals. 1. Static Aspect [] : static Aspect / S. P. Protsenko, V. G. Baidakov, A. Y. Komarov // Journal of Structural Chemistry (Russia). - 1995. - V.36, Is.1. - С. 36-42
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
CRYSTAL LENNARD-JONES -- ASPECT STATIC -- CRYSTAL TWO-DIMENSIONAL -- DEPENDENCE OF TEMPERATURE -- ISOTHERMS
Аннотация: The molecular dynamic method is employed to study the thermodynamic perameters of a two-dimensional Lennard-Jones crysyal at negative pressures. The calculations are performed for five isotherms. The lowest temperature approaches absolute zero, and the highest temperature is 35% lower that than of the triple point. The limits of attainable tension and the thermodynamic stability of the crystal as well as the lifetimes of the ultimately strained states and the relaxation times in a disordering in the crystal are estimated. The thermal characteristics of disordering in the crystalline state are revealed and investigated

\\\\Cserver\\dist\\НБО\\Электронная библиотека_Библиогр1\\Journal of Structural Chemistry\\1995, V. 36, N 1, p.36.pdf
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3.
Инвентарный номер: нет.
   
   S 66

    Skripov, V. P.
    Spontaneous boiling up as a specific relaxation process in polymer solvent systems [Text] / V. P. Skripov, S. E. Puchinscics // Journal of Applied Polymer Science. - 1996. - V. 59, №11. - P1659-1665
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
КИПЕНИЕ СПОНТАННОЕ -- СПОНТАННОЕ КИПЕНИЕ -- ПРОЦЕСС СПЕЦИАЛЬНЫЙ -- СПЕЦИАЛЬНЫЙ ПРОЦЕСС -- ПРОЦЕСС ОСЛАБЛЕННЫЙ -- ОСЛАБЛЕННЫЙ ПРОЦЕСС -- СИСТЕМА ПОЛИМЕРНАЯ -- ПОЛИМЕРНАЯ СИСТЕМА -- СИСТЕМА РАСТВОРЯЮЩАЯСЯ -- РАСТВОРЯЮЩАЯСЯ СИСТЕМА
Аннотация: The phenomenon of spontaneous bubble nucleation in extremely supersaturated (superheated) polymer–solvent systems has been studied experimentally. Spontaneous boiling-up temperatures T* for polystyrene and poly(ethylene glycol) solutions in a number of solvents have been measured at different values of pressure p and weight fraction of polymer c by the pulse heating method. The heating rate Ṫ varied from 105 to 107 K/s. For all systems studied, the values of T* have been found to increase with increasing p and c. The T*(p, c) dependence is discussed with the use of the data on the degree of compatibility of components. The peculiarities of polymeric solutions manifest themselves in the region c → 1, as follows: (i) an abrupt increase (by 1–2 orders of magnitude) in the slope of the T*(c) dependence, and (ii) the appearance of the dependence of T* values on the heating rate. Our approach to the interpretation of this result assumes a change in the initial composition of a solution in the course of heating due to polymer decomposition. An example of the extended phase diagram of a polymer–solvent system including the kinetic surface of T*(p, c) is given

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4.
Инвентарный номер: нет.
   
   S 66

    Skripov, V. P.
    Spontaneous boiling up as a specific relaxation process in polymer solvent systems [Text] / V. P. Skripov, S. E. Puchinscics // Journal of Applied Polymer Science. - 1996. - V. 59, №11. - P1659-1665
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
КИПЕНИЕ СПОНТАННОЕ -- СПОНТАННОЕ КИПЕНИЕ -- ПРОЦЕСС СПЕЦИАЛЬНЫЙ -- СПЕЦИАЛЬНЫЙ ПРОЦЕСС -- ПРОЦЕСС ОСЛАБЛЕННЫЙ -- ОСЛАБЛЕННЫЙ ПРОЦЕСС -- СИСТЕМА ПОЛИМЕРНАЯ -- ПОЛИМЕРНАЯ СИСТЕМА -- СИСТЕМА РАСТВОРЯЮЩАЯСЯ -- РАСТВОРЯЮЩАЯСЯ СИСТЕМА
Аннотация: The phenomenon of spontaneous bubble nucleation in extremely supersaturated (superheated) polymer–solvent systems has been studied experimentally. Spontaneous boiling-up temperatures T* for polystyrene and poly(ethylene glycol) solutions in a number of solvents have been measured at different values of pressure p and weight fraction of polymer c by the pulse heating method. The heating rate Ṫ varied from 105 to 107 K/s. For all systems studied, the values of T* have been found to increase with increasing p and c. The T*(p, c) dependence is discussed with the use of the data on the degree of compatibility of components. The peculiarities of polymeric solutions manifest themselves in the region c → 1, as follows: (i) an abrupt increase (by 1–2 orders of magnitude) in the slope of the T*(c) dependence, and (ii) the appearance of the dependence of T* values on the heating rate. Our approach to the interpretation of this result assumes a change in the initial composition of a solution in the course of heating due to polymer decomposition. An example of the extended phase diagram of a polymer–solvent system including the kinetic surface of T*(p, c) is given

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5.
Инвентарный номер: нет.
   
   S 86

   
    Stopping of levitation force relaxation in superconductors: the flux-locking effect / B. M. Smolyak, G. N. Perelshtein, G. V. Ermakov, E. V. Postrekhin // Physica C. - 2000. - Vol.341-348, Pt.2. - С. 1129-1130
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
SUPERCONDUCTORS -- FLUX-LOCKING EFFECT -- RELAXATION
Аннотация: Stopping of levitation force relaxation in superconductors under conditions of flux creep was studied experimentally. This effect appears when the flux profile is modulated in the near-surface layer of a superconductor. It was assumed that levitation was stabilized thanks to locking of the magnetic flux and internal magnetic relaxation. During this relaxation, the flux was redistributed in a sample, but the full flux and the average magnetization of the sample remained unchanged. A parameter characterizing the modulation depth was introduced. This parameter allows calculating the time during which the levitation force is constant

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6.
Инвентарный номер: нет.
   
   S 86

   
    Stopping of levitation force relaxation in superconductors: the flux-locking effect / B. M. Smolyak, G. N. Perelshtein, G. V. Ermakov, E. V. Postrekhin // Physica C. - 2000. - Vol.341-348, Pt.2. - С. 1129-1130
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
SUPERCONDUCTORS -- FLUX-LOCKING EFFECT -- RELAXATION
Аннотация: Stopping of levitation force relaxation in superconductors under conditions of flux creep was studied experimentally. This effect appears when the flux profile is modulated in the near-surface layer of a superconductor. It was assumed that levitation was stabilized thanks to locking of the magnetic flux and internal magnetic relaxation. During this relaxation, the flux was redistributed in a sample, but the full flux and the average magnetization of the sample remained unchanged. A parameter characterizing the modulation depth was introduced. This parameter allows calculating the time during which the levitation force is constant

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7.
Инвентарный номер: нет.
   
   S 68

    Smolyak, B. M.
    Effects of relaxation in levitating superconductors / B. M. Smolyak, G. N. Perelshtein, G. V. Ermakov (Yermakov) // Cryogenics. - 2002. - Vol.42, №10. - С. 635-644
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
SUPERCONDUCTORS -- FLUX CREEP -- MAGNETIC LEVITATION
Аннотация: The effect of the magnetic flux creep on the levitation stability of high-temperature superconductors was studied. It was shown experimentally that under a unipolar magnetization the levitation force decreased at a logarithmic velocity characteristic of the creep process. If the current structure was bi- or multi-polar one, which was formed in a sample exposed to a reversing external magnetic field, the force remained unchanged during a certain period of time. The theory of relaxation of magnetization and force for a partial and full penetration of the critical state was considered. It was shown that relaxation decelerated sharply if the region with a current producing the main magnetization was far from the superconductor surface. A concept of an open and internal magnetic relaxation was introduced. The time of the internal relaxation for different reverse depths was estimated. The calculated values approached the experimental values of the levitation stabilization time

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8.
Инвентарный номер: нет.
   
   S 68

    Smolyak, B. M.
    Effects of relaxation in levitating superconductors / B. M. Smolyak, G. N. Perelshtein, G. V. Ermakov (Yermakov) // Cryogenics. - 2002. - Vol.42, №10. - С. 635-644
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
SUPERCONDUCTORS -- FLUX CREEP -- MAGNETIC LEVITATION
Аннотация: The effect of the magnetic flux creep on the levitation stability of high-temperature superconductors was studied. It was shown experimentally that under a unipolar magnetization the levitation force decreased at a logarithmic velocity characteristic of the creep process. If the current structure was bi- or multi-polar one, which was formed in a sample exposed to a reversing external magnetic field, the force remained unchanged during a certain period of time. The theory of relaxation of magnetization and force for a partial and full penetration of the critical state was considered. It was shown that relaxation decelerated sharply if the region with a current producing the main magnetization was far from the superconductor surface. A concept of an open and internal magnetic relaxation was introduced. The time of the internal relaxation for different reverse depths was estimated. The calculated values approached the experimental values of the levitation stabilization time

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9.
Инвентарный номер: нет.
   
   V 58

   
    Vibrational relaxation of diatoms in collisions with atoms at very low energies [Текст] / E. I. Dashevskaya, E. D. Nikitin, I. Oref, J. Troe // NATO Science Series, II: Mathematics, Physics and Chemistry. - 2004. - Vol. 145: Theory of Chemical Reaction Dynamics. - С. 413-433
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
DIATOMS

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10.
Инвентарный номер: нет.
   
   V 58

   
    Vibrational relaxation of diatoms in collisions with atoms at very low energies [Текст] / E. I. Dashevskaya, E. D. Nikitin, I. Oref, J. Troe // NATO Science Series, II: Mathematics, Physics and Chemistry. - 2004. - Vol. 145: Theory of Chemical Reaction Dynamics. - С. 413-433
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
DIATOMS

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11.
Инвентарный номер: нет.
   
   G 15

    Galashev, A. E.
    Computer Simulation of the Stability of Water Clusters Containing Nitrogen Oxide Molecules [Текст] / A. E. Galashev, V. N. Chukanov // Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2004. - Vol. 66, № 5. - С. 523-530
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
WATER CLUSTERS
Аннотация: The stability of water clusters containing nitrogen oxide molecules is studied by the molecular dynamics method. The composition and size of thermodynamically stable heteroclusters are determined. The inclusion of two molecules of nitrogen oxide into aggregates containing seven or more water molecule increases the cluster stability. The correlation between the stability of heteroclusters and the ratio of self-diffusion coefficients of molecules of different kinds is observed. The real part of the cluster permittivity is maximal in the vicinity of the frequency of 200 cm–1. The inclusion of nitrogen oxide molecules into water clusters increases the characteristic frequency of dielectric relaxation. In general, heteroclusters are more stable with respect to perturbations caused by an external electric field than pure clusters with the same number of water molecules. The clusterization of water vapors accompanied by absorption of polar molecules of impurity favors a decrease in the greenhouse effect.

\\\\Expert2\\NBO\\Colloid Journal\\2004, V.66, N5,523.pdf
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12.
Инвентарный номер: нет.
   
   G 15

    Galashev, A. E.
    Computer Simulation of the Stability of Water Clusters Containing Nitrogen Oxide Molecules [Текст] / A. E. Galashev, V. N. Chukanov // Colloid Journal (Translation of Kolloidnyi Zhurnal). - 2004. - Vol. 66, № 5. - С. 523-530
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
WATER CLUSTERS
Аннотация: The stability of water clusters containing nitrogen oxide molecules is studied by the molecular dynamics method. The composition and size of thermodynamically stable heteroclusters are determined. The inclusion of two molecules of nitrogen oxide into aggregates containing seven or more water molecule increases the cluster stability. The correlation between the stability of heteroclusters and the ratio of self-diffusion coefficients of molecules of different kinds is observed. The real part of the cluster permittivity is maximal in the vicinity of the frequency of 200 cm–1. The inclusion of nitrogen oxide molecules into water clusters increases the characteristic frequency of dielectric relaxation. In general, heteroclusters are more stable with respect to perturbations caused by an external electric field than pure clusters with the same number of water molecules. The clusterization of water vapors accompanied by absorption of polar molecules of impurity favors a decrease in the greenhouse effect.

\\\\Expert2\\NBO\\Colloid Journal\\2004, V.66, N5,523.pdf
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13.
Инвентарный номер: нет.
   
   К 56

    Коверда, В. П.
    Релаксация при установлении масштабно-инвариантного распределения флуктуаций в случайных процессах с 1/f-шумом [] = Relaxation while settling a scaling-invariant distribution of fluctuations in random processes with 1/f noise / В. П. Коверда, В. Н. Скоков // Доклады Академии наук. - 2005. - Т. 401, N 2. - 181-184: риc. - Библиогр: с. 184 (10 назв.) . - ISSN 0869-5652
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
РЕЛАКСАЦИЯ -- ФЛУКТУАЦИЯ -- 1/f-ШУМ -- МАСШТАБНО-ИНВАРИАНТНОЕ РАСПРЕДЕЛЕНИЕ -- ФАЗОВЫЕ ПЕРЕХОДЫ -- ПЕРЕХОДЫ ФАЗОВЫЕ

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14.
Инвентарный номер: нет.
   
   К 56

    Коверда, В. П.
    Релаксация при установлении масштабно-инвариантного распределения флуктуаций в случайных процессах с 1/f-шумом [] = Relaxation while settling a scaling-invariant distribution of fluctuations in random processes with 1/f noise / В. П. Коверда, В. Н. Скоков // Доклады Академии наук. - 2005. - Т. 401, N 2. - 181-184: риc. - Библиогр: с. 184 (10 назв.) . - ISSN 0869-5652
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
РЕЛАКСАЦИЯ -- ФЛУКТУАЦИЯ -- 1/f-ШУМ -- МАСШТАБНО-ИНВАРИАНТНОЕ РАСПРЕДЕЛЕНИЕ -- ФАЗОВЫЕ ПЕРЕХОДЫ -- ПЕРЕХОДЫ ФАЗОВЫЕ

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15.
Инвентарный номер: нет.
   
   S 68

    Smolyak, B. M.
    The effect of ac magnetic fields on the lifting power of levitating superconductors / B. M. Smolyak, G. V. Ermakov, L. I. Chubraeva // Superconductor Science and Technology. - 2007. - Vol.20, №4. - С. 406-411
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LEVITATION FORCE -- SUPERCONDUCTING SUSPENSION -- LIFTING FORCE
Аннотация: This study deals with the decrease in the levitation force under the action of an ac field up to the frequency at which oscillations of the superconducting suspension are limited by inertia. The lifting force was measured as a function of the ac field amplitude and the exposure time. It was shown that the force quickly decreased at the moment the ac field was applied and then continued diminishing, but at a lower rate. A qualitative model was proposed, taking into account two effects of the ac field on the magnetization of the levitating superconductor: a complete destruction of the critical state in some section of the superconductor (to a depth λac) and the initiation of a faster magnetic relaxation in the region where the induction gradient is preserved

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16.
Инвентарный номер: нет.
   
   K 79

    Koverda, V. P.
    Statistics of low-frequency pulsations in critical regimes of heat mass exchange with phase transitions / V. P. Koverda, V. N. Skokov, A. V. Reshetnikov // Journal of Engineering Thermophysics. - 2007. - Vol.16, №3. - С. 130 -138
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
FLUCTUATION -- IRREGULAR HIGH-ENERGY -- 1 / F СПЕКТРЫ
Аннотация: Experimental investigation of fluctuation dynamics in critical and transitional modes of heat mass exchange shows existence of irregular high-energy pulsations with power spectrum inversely proportional to the frequency—so called 1/f spectrum. Such regimes are characterized by the fact that an essential part of the pulsations energy is connected with very slow processes and mean that large high-energy bursts are possible in the system. Another characteristic feature of such regimes is scale invariance of the fluctuations distribution function. According to the theory, the 1/f fluctuations can emerge in physical systems due to simultaneous phase transitions in presence of sufficiently intensive white noise. This paper is devoted to detailed investigation of relaxation processes at steadying of stationary stochastic process in non-equilibrium phase transitions in system of two nonlinear stochastic differential equation. Such an information reveals statistical patterns of particular large-scale low-frequency bursts. Discontinuous “forgetting” of the initial conditions takes place. It is shown by numerical methods that distributions of duration and maximal values of the low-frequency extreme bursts have the power-like form. Experimental investigation results of statistical characteristics of fluctuation processes at ultrasonic cavitation and flash boiling of overheated water jets are presented. Results of the experiments carried out fit conclusions of the theoretical model for interacting heterogeneous phase transitions

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17.
Инвентарный номер: нет.
   
   K 79

    Koverda, V. P.
    Statistics of low-frequency pulsations in critical regimes of heat mass exchange with phase transitions / V. P. Koverda, V. N. Skokov, A. V. Reshetnikov // Journal of Engineering Thermophysics. - 2007. - Vol.16, №3. - С. 130 -138
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
FLUCTUATION -- IRREGULAR HIGH-ENERGY -- 1 / F СПЕКТРЫ
Аннотация: Experimental investigation of fluctuation dynamics in critical and transitional modes of heat mass exchange shows existence of irregular high-energy pulsations with power spectrum inversely proportional to the frequency—so called 1/f spectrum. Such regimes are characterized by the fact that an essential part of the pulsations energy is connected with very slow processes and mean that large high-energy bursts are possible in the system. Another characteristic feature of such regimes is scale invariance of the fluctuations distribution function. According to the theory, the 1/f fluctuations can emerge in physical systems due to simultaneous phase transitions in presence of sufficiently intensive white noise. This paper is devoted to detailed investigation of relaxation processes at steadying of stationary stochastic process in non-equilibrium phase transitions in system of two nonlinear stochastic differential equation. Such an information reveals statistical patterns of particular large-scale low-frequency bursts. Discontinuous “forgetting” of the initial conditions takes place. It is shown by numerical methods that distributions of duration and maximal values of the low-frequency extreme bursts have the power-like form. Experimental investigation results of statistical characteristics of fluctuation processes at ultrasonic cavitation and flash boiling of overheated water jets are presented. Results of the experiments carried out fit conclusions of the theoretical model for interacting heterogeneous phase transitions

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18.
Инвентарный номер: нет.
   
   S 68

    Smolyak, B. M.
    The effect of ac magnetic fields on the lifting power of levitating superconductors / B. M. Smolyak, G. V. Ermakov, L. I. Chubraeva // Superconductor Science and Technology. - 2007. - Vol.20, №4. - С. 406-411
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
LEVITATION FORCE -- SUPERCONDUCTING SUSPENSION -- LIFTING FORCE
Аннотация: This study deals with the decrease in the levitation force under the action of an ac field up to the frequency at which oscillations of the superconducting suspension are limited by inertia. The lifting force was measured as a function of the ac field amplitude and the exposure time. It was shown that the force quickly decreased at the moment the ac field was applied and then continued diminishing, but at a lower rate. A qualitative model was proposed, taking into account two effects of the ac field on the magnetization of the levitating superconductor: a complete destruction of the critical state in some section of the superconductor (to a depth λac) and the initiation of a faster magnetic relaxation in the region where the induction gradient is preserved

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19.
Инвентарный номер: нет.
   
   S 68

    Smolyak, B. M.
    Suppression of magnetic relaxation in a high-temperature superconductor placed near a ferromagnet [Electronic resource] / B. M. Smolyak, G. V. Ermakov // Technical Physics Letters . - 2010. - Vol.36, №5. - P461-463. - Bibliogr. : p. 463 (12 ref.)
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MAGNETIC RELAXATION -- HIGH TEMPERATURE -- FERROMAGNET
Аннотация: The phenomenon of the suppression of magnetic relaxation in a high temperature superconduc tor (HTSC) with trapped magnetic flux has been observed when the superconducting sample approached a ferromagnet. It is suggested that the ferromagnet is magnetized in the magnetic field of the sample and, in turn, induces currents in the superconductor, which circulate in a direction opposite to that of the trapped flux current. As a result, the magnetic structure becomes stable with respect to the magnetic flux creep because oppositely directed Lorentz forces can act upon different regions of vortices.

\\\\expert2\\NBO\\Technical Physics Letters (Письма в ЖТФ)\\2010, v. 36, N. 5, p.461.pdf
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20.
Инвентарный номер: нет.
   
   S 68

    Smolyak, B. M.
    Elimination of magnetic relaxation in superconductors on approaching a ferromagnet / B. M. Smolyak, G. V. Ermakov // Physica C. - 2010. - Vol.470, №3. - С. 218-220
ББК 53
Рубрики: ФИЗИКА
Кл.слова (ненормированные):
MAGNETIC RELAXATION -- FERROMAGNET -- MAGNETIC STRUCTURE
Аннотация: It is found that magnetic relaxation is suppressed in a high-temperature superconductor when it approaches a ferromagnet. It is supposed that this phenomenon results from formation of a nonequilibrium magnetic structure, in which counter driving forces act in different regions

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