| Autor: |
Ren, Zhi-An, Che, Guang-Can, Dong, Xiao-Li, Yang, Jie, Lu, Wei, Yi, Wei, Shen, Xiao-Li, Li, Zheng-Cai, Sun, Li-Ling, Zhou, Fang, Zhao, Zhong-Xian |
| Rok vydání: |
2008 |
| Předmět: |
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| Zdroj: |
Europhysics Letters, 83 (2008) 17002. |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1209/0295-5075/83/17002 |
| Popis: |
Here we report a new class of superconductors prepared by high pressure synthesis in the quaternary family ReFeAsO1-delta (Re = Sm, Nd, Pr, Ce, La) without fluorine doping. The onset superconducting critical temperature (Tc) in these compounds increases with the reduction of Re atom size, and the highest Tc obtained so far is 55 K in SmFeAsO1-delta. For the NdFeAsO1-delta system with different oxygen concentration a dome-shaped phase diagram was found. |
| Databáze: |
arXiv |
| Externí odkaz: |
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