2001 (v1)
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Uploaded on: March 31, 2023
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Last name: TUMINO
First name: Andrea
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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...