2000 (v1)
Publication
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Uploaded on: December 4, 2022
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2001 (v1)Publication
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Uploaded on: March 25, 2023 -
2002 (v1)Publication
The electronic anisotropy in MgB2, which arises from its layered crystal structure, is not completely clear until now. High quality c-oriented films offer the opportunity of studying such property. MgB2 thin films were deposited by using two methods both based on room temperature precursor deposition (by pulsed laser ablation) and ex situ...
Uploaded on: March 25, 2023 -
2002 (v1)Publication
Superconducting multilayers, whose growth and structure are determined by the kinetic deposition instead of by thermodynamics, are a powerful tool for investigating high Tc superconductor properties. By means of pulsed laser deposition, we grew ((Ba,La)CuO2+δ)2/(CaCuO2)n superconducting superlattices. Different electrical properties have been...
Uploaded on: March 27, 2023 -
2005 (v1)Publication
We study the effect of neutron irradiation on the critical current density Jc of isotopically pure polycrystalline Mg 11B2 samples. For fluences in the range 1017–1018 cm−2, Jc is enhanced and its dependence on magnetic field is significantly improved: we demonstrate that, in this regime, pointlike pinning centers are effectively introduced in...
Uploaded on: May 11, 2023 -
2005 (v1)Publication
We studied the upper critical field in poly-crystalline MgB2 samples in which disorder was introduced by different ways: Al substitution and neutron irradiation. We observed that by Al doping critical temperature Tc decreases, the resistivity increases but the upper critical field, Hc2, decreases. This behavior can be explained considering that...
Uploaded on: March 25, 2023