Superconductivity at 15 K in NdFe0.9Rh0.1AsO without F-doping

作者：Berardan David^*; Zhao Lidong; Pinsard Gaudart Loreynne; Dragoe Nita

来源：Physica C-Superconductivity and Its Applications, 2010, 470(2): 165-167.

DOI：10.1016/j.physc.2009.12.006

• Oxypnictide
• Thermopower
• Electrical resistivity
• Magnetic susceptibility

We present results of transport and magnetic properties measurements performed on polycrystalline NdFe0.9Rh0.1AsO. Despite the large size difference between Fe and Rh elements, this compound undergoes a superconducting transition with T-c similar to 15 K. We have compared the transport properties of this Rh-doped oxypnictide with that of optimally doped NdFeAsO0.88F0.12 Contrary to this latter compound, a strong upturn of the normal-state resistivity occurs above T-c, and no peak of the thermopower has been observed.

• 出版日期2010-1-15