Transport and electronic properties of Y{sub 0.4}Pr{sub 0.6}Ba{sub 2{minus}y}Sr{sub y}Cu{sub 3}O{sub 7{minus}{delta}}(y = 0, 1.0)
Journal Article
·
· International Journal of Modern Physics B
- Zhejiang Univ., Hangzhou (China). Dept. of Physics
The authors report measurements of the resistivity, thermoelectric power and Hall carrier number on Y{sub 0.4}Pr{sub 0.6}Ba{sub 2{minus}y}Sr{sub y}Cu{sub 3}O{sub 7{minus}{delta}} (y = 0, 1.0) polycrystalline samples. The Sr-free compound exhibits semiconducting behavior, while the Sr-doped sample is superconducting at 18 K with a possible pseudo-gap structure at 255 K. Results of the thermoelectric power and Hall measurements revealed that the revival of superconductivity by the Sr substitution is due to the increase of mobile hole-concentration. They present a band picture of Pr4f-O2p hybridization to elucidate the variation of the transport properties.
- OSTI ID:
- 596807
- Journal Information:
- International Journal of Modern Physics B, Journal Name: International Journal of Modern Physics B Journal Issue: 29 Vol. 11; ISSN IJPBEV; ISSN 0217-9792
- Country of Publication:
- United States
- Language:
- English
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