Global phase diagram and the spin structure in the Fe-based superconductors

ORAL

Abstract

We study the global phase diagram and calculate the spin susceptivility for different states based on a two-orbital $J_1 - J_2$ model for Fe-based superconductors. Unique features associated with the unconventional $s_{x^2 y^2}\sim \cos (k_x) \cos (k_y)$ wave pairing symmetry are identified.

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Authors

  • Kangjun Seo

    Purdue University

  • Chen Fang

    Purdue University, Purdue Univsersity

  • Jiangping Hu

    Purdue University, Department of Physics, Purdue University

  • B. Andrei Bernevig

    Princeton University