Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Pan, Alexey V."'
Publikováno v:
Scientific Reports 5 8677 (2015)
The glass-like vortex distribution in pulsed laser deposited YBCO thin films is observed by scanning superconducting quantum interference device microscopy and analysed for ordering after cooling in magnetic fields significantly smaller than the Eart
Externí odkaz:
http://arxiv.org/abs/1807.06746
Autor:
Wells, Frederick S., Pan, Alexey V., Golovchanskiy, Igor A., Fedoseev, Sergey A., Rozenfeld, Anatoly
Publikováno v:
Scientific Reports 7 40235 (2017)
The dynamics of transient current distributions in superconducting YBCO thin films were investigated during and immediately following an external field ramp, using high-speed (real-time) Magneto-Optical Imaging and calculation of dynamic current prof
Externí odkaz:
http://arxiv.org/abs/1807.06745
The classical problem of magnetic stripe domain behavior in films and plates with uniaxial magnetic anisotropy is treated. Exact analytical results are derived for the stripe domain widths as function of applied perpendicular field, $H$, in the regim
Externí odkaz:
http://arxiv.org/abs/1211.1366
Much smoother surfaces and significantly improved superconducting properties of relatively thick YBa2Cu3O7 (YBCO) films have been achieved by introducing a multilayered structure with alternating main YBCO and additional NdBCO layers. The surface of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606306
Autor:
Pan, Alexey V., Esquinazi, Pablo
In magnetic fields applied within the angular range of the surface superconductivity state a magnetically anisotropic layered medium is created in structurally isotropic, sufficiently thick niobium films. Surface (Kulik) vortices residing in the supe
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410139
Autor:
Pan, Alexey V., Dou, Shixue
Publikováno v:
J. Appl. Phys. 96, 1146-1153 (2004)
Magnetic measurements carried out on MgB_2 superconducting round wires have shown that the critical current density J_c(B_a) in wires sheathed by iron can be significantly higher than that in the same bare (unsheathed) wires over a wide applied magne
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403454
The in situ annealing conditions of pulsed laser deposited MgB2 films were studied. The precursor films were deposited at 250 C from a stoichiometric MgB2 target in a 120mTorr Ar atmosphere. The films were then in situ annealed at a temperature from
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310755
Publikováno v:
Supercond. Sci. Technol. 16, 639-644 (2003)
We have fabricated a series of iron-sheathed superconducting wires prepared by the powder-in-tube technique from (MgB_2)_{1-x}:(Mg+2B)_x initial powder mixtures taken with different proportions, so that x varies from 0 to 1. It turned out that "ex-si
Externí odkaz:
http://arxiv.org/abs/cond-mat/0302249
Publikováno v:
Supercond. Sci. Technol. 16, L33-L36 (2003)
Local magneto-optical imaging and global magnetization measurement techniques were used in order to visualize shielding effects in the superconducting core of MgB_2 wires sheathed by ferromagnetic iron (Fe). The magnetic shielding can provide a Meiss
Externí odkaz:
http://arxiv.org/abs/cond-mat/0205253
Autor:
Pan, Alexey V., Esquinazi, Pablo
We have investigated the influence of a driving force on the elastic coupling (Labusch parameter) of the field-cooled state of the flux line lattice (FLL) in 400 nm thick YBa$_2$Cu$_3$O$_7$ superconducting films. We found that the FLL of a field-cool
Externí odkaz:
http://arxiv.org/abs/cond-mat/0005440