Hopping Conduction in the Zn Doped Pr(123) System

✍ Scribed by Ata-Allah, S.S.

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 288 KB
• Volume: 177
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/(sici)1521-396x(200001)177:1<251::aid-pssa251>3.0.co;2-8

✦ Synopsis

A series of PrBa 2 Cu 3± ±x Zn x O 7± ±y samples with 0 x 1.0 has been prepared. X-ray powder diffraction results show the presence of a single-phase orthorhombic structure for all the studied samples. The electrical resistivity of PrBa 2 Cu 3± ±x Zn x O 7± ±y samples is found to increase with increasing Zn concentration. The results are interpreted in terms of hopping conductivity (both nearest-neighbor-hopping and variable-range-hopping) for doped semiconductors.