Topological edge states in pnictides

ORAL

Abstract

In some members of the ferro-pnictides, non-trivial topology in the bulk band-structure is related to potentially observable gapless edge states. We study these states numerically and analytically for a range of parameters, with and without superconductivity and antiferromagnetic SDW ordering, and their relation to the symmetries and topologically non-trivial aspects of our model Hamiltonian.

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Authors

  • Cody Youmans

    City College of New York; The Graduate Center, CUNY

  • Pouyan Ghaemi

    City College of New York, City College of City University of New York

  • Mehdi Kargarian

    University of Maryland