Strong carrier-scattering in iron-pnictide superconductors Ln FeAsO 1-y ( Ln=La and Nd) obtained from charge transport experiments

S. Ishida, M. Nakajima, Y. Tomioka, T. Ito, K. Miyazawa, H. Kito, C. H. Lee, M. Ishikado, S. Shamoto, A. Iyo, H. Eisaki, K. M. Kojima, S. Uchida

研究成果: Article同行評審

22 引文 斯高帕斯(Scopus)

摘要

Characteristic normal-state charge transport is found in the oxygen-deficient iron-arsenides Ln FeAsO1-y (Ln: La and Nd) with the highest Tc's among known Fe-based superconductors. The effect of "doping" in this system is mainly on the carrier scattering, quite distinct from that in high- Tc cuprates. In the superconducting regime of the La system with maximum Tc =28 K, the low-temperature resistivity is dominated by a T2 term. On the other hand, in the Nd system with Tc higher than 40 K, the carriers are subject to stronger scattering showing T -linear resistivity and small magnetoresistance. Such strong scattering appears crucial for high- Tc superconductivity in the iron-based system.

原文English
文章編號094515
期刊Physical Review B - Condensed Matter and Materials Physics
81
發行號9
DOIs
出版狀態Published - 2010 3月 16

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學

指紋

深入研究「Strong carrier-scattering in iron-pnictide superconductors Ln FeAsO 1-y ( Ln=La and Nd) obtained from charge transport experiments」主題。共同形成了獨特的指紋。

引用此