Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Popkov, S. I."'
Publikováno v:
Physica C 566 (2019) 1353526
Magnetization hysteresis loops of tin samples with an inverted opal structure are presented. The sample formed by tin particles with the size of 70 and 128 nm is found to be a type-I superconductor. The tin sample formed by 80 and 42 nm particles dem
Externí odkaz:
http://arxiv.org/abs/1909.04271
Publikováno v:
Physics of the Solid State 53, 2409 (2011)
The current-voltage characteristics of a porous superconductor Bi2Sr2Ca2Cu3Ox (Bi2223) have been measured at temperature range from 10 to 90 K. The experimental dependences have been analyzed within the model allowing for pinning by clusters of a nor
Externí odkaz:
http://arxiv.org/abs/1304.2844
Magnetoresistance of substituted lanthanum manganite (La0.5Eu0.5)0.7Pb0.3MnO3 in the pulse magnetic field H = 25 T was measured at different temperatures. Magnetoresistance relaxation with a characteristic time of 10 -3 s was found. It has been estab
Externí odkaz:
http://arxiv.org/abs/1204.3987
Autor:
Gokhfeld, D. M., Balaev, D. A., Petrov, M. I., Popkov, S. I., Shaykhutdinov, K. A., Valkov, V. V.
Publikováno v:
J. Appl. Phys. 109, 033904 (2011)
Inhomogeneous distribution of the pinning force in superconductor results in a magnetization asymmetry. A model considering the field distribution in superconductor was developed and symmetric and asymmetric magnetization loops of porous and textured
Externí odkaz:
http://arxiv.org/abs/1010.4650
Publikováno v:
Physica C, Vol. 470 (2010) S870-S872
The dependence of magnetization on magnetic field M(H) was measured for textured BSCCO samples for H || c, H || ab at different temperatures. Inclusion of the pinning parameter in the Valkov-Khrustalev model [V.V. Valkov, B.P. Khrustalev, JETP 80 (19
Externí odkaz:
http://arxiv.org/abs/0908.4131
Autor:
Petrov, M. I., Gokhfeld, Yu. S., Balaev, D. A., Popkov, S. I., Dubrovskiy, A. A., Gokhfeld, D. M., Shaykhutdinov, K. A.
Publikováno v:
Supercond. Sci. Technol. 21 085015 (4pp) 2008
The intragrain pinning in high-$T_c$ superconductor compounds Y$_{1-x}$RE$_{x}$Ba$_{2}$Cu$_{3}$O$_{7-\delta}$ with low concentration of RE (La, Ce, Pr) was investigated. Magnetic and transport measurements reveal that the pinning is maximal for the c
Externí odkaz:
http://arxiv.org/abs/0803.0795
Publikováno v:
Physica C, V. 467, Issues 1-2, (2007), P. 80-84
The current-voltage ($I$-$V$) characteristics of break junctions of polycrystalline La$_{1.85}$Sr$_{0.15}$CuO$_4$, Y$_{0.75}$Lu$_{0.25}$Ba$_2$Cu$_3$O$_{7-\delta}$, Bi$_{1.8}$Pb$_{0.3}$Sr$_{1.9}$Ca$_2$Cu$_3$O$_x$ and composite YBa$_2$Cu$_3$O$_{7-\delt
Externí odkaz:
http://arxiv.org/abs/0704.0694
Publikováno v:
Physica C, Volume 434, Issue 2, 15 February 2006, Pages 135-137
The magnetization of porous $Bi_{1.8}Pb_{0.3}Sr_2Ca_2Cu_3O_x$ have been investigated. The experimental magnetization hysteretic loops of $M(H)$ were described in the frames of Val'kov -- Khrustalev model developed for type II granular superconductors
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506243
Publikováno v:
The Physics of Metals and Metallography, 2006, Vol. 101, Suppl. 1, pp. S27--S28.
The current-voltage characteristic (CVC) of break junction made from polycrystalline Bi_{1.8}Pb_{0.3}Sr_{1.9}Ca_2Cu_3O_x is investigated. The experimental CVC has hysteretic feature that reflects a part of a curve with negative differential resistanc
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410112
Forming High-Temperature Superconducting Layers at the Interfaces between Nonsuperconducting Phases.
Autor:
Petrov, M. I.1 (AUTHOR), Popkov, S. I.1 (AUTHOR) psi@ksc.krasn.ru, Terent'ev, K. Yu.1 (AUTHOR), Vasil'ev, A. D.1,2 (AUTHOR)
Publikováno v:
Technical Physics Letters. Oct2020, Vol. 46 Issue 10, p1004-1007. 4p.