Physical Properties of Single Crystal EuIn$_{2}$P$_{2}$ and EuGa$_{2}$P$_{2}$

ORAL

Abstract

Single crystals of EuIn$_{2}$P$_{2}$ and EuGa$_{2}$P$_{2}$ have been grown by a metal flux method.$^{ }$The EuIn$_{2}$P$_{2}$ material crystallizes in a new hexagonal structure type and orders magnetically at 24 K. The magnetic ordering is anisotropic suggesting a possible canted ferromagnetic magnetic structure. The temperature dependent resistivity data indicate semi-metallic behavior. Negative colossal magnetoresistance is observed at the ordering temperature. The gallium metal analogue, EuGa$_{2}$P$_{2}$, crystallizes in a related monoclinic structure and magnetically orders at a slightly higher temperature. Magnetization, resistivity and specific heat data are presented for both compounds.

Authors

  • Newell Jensen

  • Samuel MaQuilon

  • Peter Klavins

    Department of Physics, University of California, Davis, California, 95616

  • Zach Fisk

    Department of Physics, University of California, Davis, California, 95616, UC Davis Physics, UC Davis

  • Cathie Condron

    Department of Chemistry, University of California, Davis, California, 95616

  • Jiong Jiang

  • Susan Kauzlarich

    UC Davis Chemistry