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

作　　者：Dagne Atnafu Poran Singh 

机构地区：[1]Department of Physics, Addis Ababa University, Addis Ababa, Ethiopia

出　　处：《World Journal of Condensed Matter Physics》2014年第3期101-106,共6页凝固态物理国际期刊（英文）

摘　　要：The coexistence of superconductivity and spin density wave in SmO1-xFxFeAs 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 TSDW 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.The coexistence of superconductivity and spin density wave in SmO1-xFxFeAs 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 TSDW 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.

关 键 词：COEXISTENCE Superconducting Order PARAMETER Spin Density Wave Order PARAMETER and Green Function 

分 类 号：R73[医药卫生—肿瘤]