The Coexistence of Super Conductivity and Spin Density Wave (SDW) in SmO1-xFxFeAs - World Journal of Condensed Matter Physics

WJCMP > Vol.4 No.3, August 2014

The Coexistence of Super Conductivity and Spin Density Wave (SDW) in SmO_1-xF_xFeAs ()

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DOI: 10.4236/wjcmp.2014.43015 3,047 Downloads 4,312 Views Citations

Author(s)

Dagne Atnafu, Poran Singh

Affiliation(s)

Department of Physics, Addis Ababa University, Addis Ababa, Ethiopia.

ABSTRACT

The coexistence of superconductivity and spin density wave in SmO_1-xF_xFeAs is theoretically studied using the model Hamiltonian which contains BCS type superconductivity and spin density wave terms. Employing green function formalism, the expression for the spin density wave order parameter (M) and expression for spin density wave transition temperature T_SDW is obtained. The interplay between the superconductivity and spin density wave is examined in these parameters and the coexistence of the two states is established in the order parameter range of 0.1≤MmeV≤0.13 which is seen to be in broad experimental agreement.

KEYWORDS

Coexistence, Superconducting Order Parameter, Spin Density Wave Order Parameter and Green Function

Share and Cite:

Atnafu, D. and Singh, P. (2014) The Coexistence of Super Conductivity and Spin Density Wave (SDW) in SmO_1-xF_xFeAs. World Journal of Condensed Matter Physics, 4, 101-106. doi: 10.4236/wjcmp.2014.43015.

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