Abstract
The effect of Na- and Li-doping in Hg-based cuprates has been studied. It has been found that superconductivity can be achieved in samples containing small amount of Na or Li. While little change is found in the crystalline structure, the formed superconducting phase have the onset Tc typically above 140 K and zero-resistance Tc up to 136K. More interestingly, the processing temperature for the doped Hg-1223 can be reduced significantly to near 700°C which is promising for thin films growth on many technologically compatible substrates.
Original language | English |
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Pages (from-to) | 169-171 |
Number of pages | 3 |
Journal | Journal of Superconductivity |
Volume | 11 |
Issue number | 1 |
DOIs | |
State | Published - 1998 |
Externally published | Yes |
Funding
This work is supported in part by US AFOSR Grant No. F49620-96-1-0358, NSF Grant No. DMR-9632279 and NSF EPSCoR fund, the University of Kansas GRF fund and new faculty start-up fund. The authors are very grateful to the Midwest Superconductivity Inc. for support in material, laboratory space, and experimental facilities.
Funders | Funder number |
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NSF EPSCoR fund | |
US AFOSR | F49620-96-1-0358 |
National Science Foundation | DMR-9632279 |
University of Kansas |
Keywords
- Alkali-doping
- Hg-based Cuprates
- Superconductivity