Electronic structure of the kagome lattice Cu$_4$(OH)$_6$FBr

ORAL

Abstract

We investigate the electronic and magnetic properties of Cu$_4$(OH)$_6$FBr in the framework of ab initio density functional theory calculations and model considerations. This system, similarly to the well known Herbertsmithite ZnCu$_3$(OH)$_6$Cl$_2$, consists of stacked layers of Cu$^{2+}$ ions arranged in a Kagome pattern. We will discuss in terms of microscopic models the resemblances and differences between these two systems.

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Authors

  • Kateryna Foyevtsova

    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt, Max-von-Laue-Strasse 1, 60438 Frankfurt/Main, Germany
    • Institut f\"ur Theoretische Physik, Goethe-Unversit\"at Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany

  • Francesc Salvat-Pujol

    • Institut f\"ur Theoretische Physik, Goethe-Unversit\"at Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt, Max-von-Laue-Strasse 1, 60438 Frankfurt/Main, Germany

  • Harald O. Jeschke

    • Institut f\"ur Theoretische Physik, Goethe-Unversit\"at Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt, Max-von-Laue-Strasse 1, 60438 Frankfurt/Main, Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt, Max-von-Laue-Strasse 1, 60438 Frankfurt/Main , Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt/Main, 60438 Frankfurt, Germany

  • Roser Valenti

    • Institut f\"ur Theoretische Physik, Goethe-Unversit\"at Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt, Max-von-Laue-Strasse 1, 60438 Frankfurt/Main, Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt/Main, 60438 Frankfurt, Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt, Max-von-Laue-Strasse 1, 60438 Frankfurt/Main , Germany
    • Institut f\"ur Theoretische Physik, Goethe-Universit\"at Frankfurt, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
    • Universitaet Frankfurt

  • John Schlueter

    • Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA