Evolution from non-Fermi- to Fermi-liquid transport via isovalent doping in BaFe2(As1-xPx)2 superconductors

S. Kasahara, T. Shibauchi, K. Hashimoto, K. Ikada, S. Tonegawa, R. Okazaki, H. Shishido, H. Ikeda, H. Takeya, K. Hirata, T. Terashima, Y. Matsuda

研究成果: Article査読

410 被引用数 (Scopus)


The normal-state charge transport is studied systematically in high-quality single crystals of BaFe2(As1-xPx)2 (0≤x≤0.71). By substituting isovalent P for As, the spin-density-wave (SDW) state is suppressed and the dome-shaped superconducting phase (T c≲31 K) appears. Near the SDW end point (x≈0.3), we observe striking linear temperature (T) dependence of resistivity in a wide T range, and remarkable low- T enhancement of Hall-coefficient magnitude from the carrier number estimates. We also find that the magnetoresistance apparently violates the Kohler's rule and is well scaled by the Hall angle ΘH as Δ ρxxxx αtan2 ΘH. These non-Fermi-liquid transport anomalies cannot be attributed to the simple multiband effects. These results capture universal features of correlated electron systems in the presence of strong antiferromagnetic fluctuations.

ジャーナルPhysical Review B - Condensed Matter and Materials Physics
出版ステータスPublished - 2010 5 19

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学


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