Two dimensional disorder in black phosphorus and layered monochalcogenides

ORAL

Abstract

The degeneracies of the structural ground state of materials with a layered orthorhombic structure such as black phosphorus and layered monochalcogenides GeS, GeSe, SnS, and SnSe, lead to an order/disorder transition in two dimensions at finite temperature. This transition has consequences on applications based on these materials requiring a crystalline two-dimensional structure. Details including a Potts model that explains the two-dimensional transition, among other results, will be given in this talk. References: M. Mehboudi, A.M. Dorio, W. Zhu, A. van der Zande, H.O.H. Churchill, A.A. Pacheco Sanjuan, E.O.H. Harris, P. Kumar, and S. Barraza-Lopez. arXiv:1510.09153.

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Authors

  • Salvador Barraza-Lopez

    University of Arkansas, Department of Physics, University of Arkansas

  • Mehrshad Mehboudi

    University of Arkansas

  • Pradeep Kumar

    Univ of Arkansas-Fayetteville, University of Arkansas, Department of Physics, Univ of Arkansas-Fayetteville

  • Edmund O. Harriss

    University of Arkansas

  • Hugh O. H. Churchill

    University of Arkansas

  • Alex M. Dorio

    University of Arkansas

  • Wenjuan Zhu

    University of Illinois, University of Illinois at Urbana-Champaign

  • Arend van der Zande

    University of Illinois

  • Alejandro A. Pacheco SanJuan

    Universidad del Norte