393 citations · 1.4k across the 12 of their papers we have counts for
11 papers · 1 filter
Study of grain boundary transparency in (Yb1-xCax)Ba2Cu3O bi-crystal thin films over a wide temperature, field and field orientation range
Pei Li, Dmytro Abraimov, Anatolii Polyanskii +2
The residual low angle grain boundary (GB) network is still the most important current-limiting mechanism operating in bi-axially textured rare earth barium copper oxide (REBCO) co…
Roles of intrinsic anisotropy and pi-band pairbreaking effects on critical currents in tilted c-axis MgB2 films probed by magneto-optical and transport measurements
A. A. Polyanskii, F. Kametani, D. Abraimov +7
Investigations of MgB2 and Fe-based superconductors in recent years have revealed many unusual effects of multiband superconductivity but manifestations of anisotropic multiband ef…
Comparison of grain texture in round Bi2212 and flat Bi2223 superconducting wires and its relation to high critical current densities
F. Kametani, J. Jiang, M. Matras +3
Why Bi2Sr2CaCu2Ox (Bi2212) allows high critical current density Jc in round wires rather than only in the anisotropic tape form demanded by all other high temperature superconducto…
New Fe-based superconductors: properties relevant for applications
M Putti, I Pallecchi, E Bellingeri +23
Less than two years after the discovery of high temperature superconductivity in oxypnictide LaFeAs(O,F) several families of superconductors based on Fe layers (1111, 122, 11, 111)…
Template engineering of Co-doped BaFe2As2 single-crystal thin films
S. Lee, J. Jiang, C. T. Nelson +14
Understanding new superconductors requires high-quality epitaxial thin films to explore intrinsic electromagnetic properties, control grain boundaries and strain effects, and evalu…
Intergrain current flow in a randomly oriented polycrystalline SmFeAsO0.85 oxypnictide
F. Kametani, P. Li, D. Abraimov +11
We report a direct current transport study of the local intergrain connections in a polycrystalline SmFeAsO0.85 (Sm1111) bulk, for which we earlier estimated significant intergranu…
Weak-link behavior of grain boundaries in superconducting Ba(Fe1-xCox)2As2 bicrystals
S. Lee, J. Jiang, J. D. Weiss +17
We show that despite the low anisotropy, strong vortex pinning and high irreversibility field Hirr close to the upper critical field Hc2 of Ba(Fe1-xCox)2As2, the critical current d…
Laser Scanning Microscopy of HTS Films and Devices
A. P. Zhuravel, A. G. Sivakov, O. G. Turutanov +3
The work describes the capabilities of Laser Scanning Microscopy (LSM) as a spatially resolved method of testing high_Tc materials and devices. The earlier results obtained by the…
Imaging Local Sources of Intermodulation in Superconducting Microwave Devices
A. P. Zhuravel, A. V. Ustinov, D. Abraimov +1
This work presents new experimental results on low-temperature (LT) characterization of local rf properties of passive superconducting (SC) microwave devices using a novel Laser Sc…
Diversity of discrete breathers observed in a Josephson ladder
P. Binder, D. Abraimov, A. V. Ustinov
We generate and observe discrete rotobreathers in Josephson junction ladders with open boundaries. Rotobreathers are localized excitations that persist under the action of a spatia…
Broken symmetry of row switching in 2D Josephson junction arrays
D. Abraimov, P. Caputo, G. Filatrella +3
We present an experimental and theoretical study of row switching in two-dimensional Josephson junction arrays. We have observed novel dynamic states with peculiar percolative patt…