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27 April 2024

» arxiv » 0901.3227

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Superconductivity in BaFe$_{2}$(As$_{1-x}$P$_{x}$)$_{2}$
Shuai Jiang ; Cao Wang ; Zhi Ren ; Yongkang Luo ; Guanghan Cao ; Zhu'an Xu ;
Date:	21 Jan 2009
Abstract:	We report bulk superconductivity in BaFe$_{2}$(As$_{1-x}$P$_{x}$)$_{2}$. The iso-valent doping of phosphorus in BaFe$_{2}$As$_{2}$ leads to the shrinkage of lattice. The resistivity anomaly associated with the spin-density-wave transition is suppressed by the phosphorus doping. Superconductivity with $T_c$=7 K emerges at $x$=0.25, and the maximum $T_c$ reaches 30 K at $x$=0.35. The appearance of superconductivity is discussed in terms of chemical pressure.
Source:	arXiv, 0901.3227
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