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.
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Authors
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Newell Jensen
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Samuel MaQuilon
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Peter Klavins
Department of Physics, University of California, Davis, California, 95616
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Zach Fisk
Department of Physics, University of California, Davis, California, 95616, UC Davis Physics, UC Davis
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Cathie Condron
Department of Chemistry, University of California, Davis, California, 95616
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Jiong Jiang
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Susan Kauzlarich
UC Davis Chemistry