Anomalous normal-state properties of iron pnictides: phenomenological theory

Details Anomalous normal-state properties of iron pnictides: phenomenological theory Anomalous normal-state properties of iron pnictides: phenomenological theory

2009-12-16

arxiv.org/abs/0912.3122v2

Phys. Rev. B 81, 115121 (2010)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages (revtex4), 4 ps figures

Scientific paper

We employ the phenomenological theory of the quasiparticle relaxation based on the simplified two-band description and the spin-fluctuation induced interband coupling to analyze recent normal-state transport data in electron-doped iron pnictides, in particular the Ba(Fe_1-x Co_x)_2As_2 family. Temperature dependence of the resistivity, thermopower and the Hall constant are evaluated. It is shown that their anomalous behavior emerging from experiments can be consistently described within the same framework assuming also non-Fermi-liquid spin fluctuations.

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