Magnetoresistance measurements on (Ca, Th)-doped YBa2Cu3O7−δ

✍ Scribed by Magnus Andersson; Östen Rapp

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 194 KB
• Volume: 185-189
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(91)91076-g

✦ Synopsis

Magnetoresistance measurements on sintered Y ~CauTh_Ba~Cu~O, ~ samples with 1-2 .... ~ .-v x <= 0.1 are reported. By fitting the measured data to the Hikami-Larkin theory, we obtain coherence lengths, ~ab and ~c' and a phase breaking time ~#

All these parameters are found to decrease with (Ca, Th) doping. We also conclude that magnetoresistance measurements are highly sensitive to inhomogeneities in the sample.