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

被引：468

作者：

Kasahara, S. ^{[1
,2
]}

Shibauchi, T. ^{[3
]}

Hashimoto, K. ^{[3
]}

Ikada, K. ^{[3
]}

Tonegawa, S. ^{[3
]}

Okazaki, R. ^{[3
]}

Shishido, H. ^{[3
]}

Ikeda, H. ^{[3
]}

Takeya, H. ^{[2
]}

Hirata, K. ^{[2
]}

Terashima, T. ^{[1
]}

Matsuda, Y. ^{[3
]}

机构：

[1] Kyoto Univ, Res Ctr Low Temp & Mat Sci, Kyoto 6068502, Japan

[2] Natl Inst Mat Sci, Superconducting Mat Ctr, Tsukuba, Ibaraki 3050047, Japan

[3] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.81.184519

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 less than or similar to 31 K) appears. Near the SDW end point (x approximate to 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 Theta(H) as Delta rho(xx)/rho(xx) alpha tan(2) Theta(H). 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 antiferro-magnetic fluctuations.

引用

页数：5

共 33 条

[1] Fermi Surface of SrFe2P2 Determined by the de Haas-van Alphen Effect [J].