Pressure effects on the transport coefficients of Ba(Fe1-xCox)2As2

S. Arsenijević; R. Gaál; A. S. Sefat; M. A. McGuire; B. C. Sales; D. Mandrus; L. Forró

doi:10.1103/PhysRevB.84.075148

Pressure effects on the transport coefficients of Ba(Fe1-xCox)2As2

Superconductivity 2011-08-15 v3

Authors: S. Arsenijević , R. Gaál , A. S. Sefat , M. A. McGuire , B. C. Sales , D. Mandrus , L. Forró

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We report the temperature dependence of the resistivity and thermoelectric power under hydrostatic pressure of the itinerant antiferromagnet BaFe2As2 and the electron-doped superconductor Ba(Fe0.9Co0.1)2As2. We observe a hole-like contribution to the thermopower below the structural-magnetic transition in the parent compound that is suppressed in magnitude and temperature with pressure. Pressure increases the contribution of electrons to transport in both the doped and undoped compound. In the 10% Co-doped sample, we used a two-band model for thermopower to estimate the carrier concentrations and determine the effect of pressure on the band structure.

Keywords

hydrostatic pressure transport coefficients iron-based superconductor thermoelectric power band structure

Cite

@article{arxiv.1103.4501,
  title  = {Pressure effects on the transport coefficients of Ba(Fe1-xCox)2As2},
  author = {S. Arsenijević and R. Gaál and A. S. Sefat and M. A. McGuire and B. C. Sales and D. Mandrus and L. Forró},
  journal= {arXiv preprint arXiv:1103.4501},
  year   = {2011}
}

Pressure effects on the transport coefficients of Ba(Fe1-xCox)2As2

Abstract

Keywords

Cite

Related papers