Colossal magnetoresistance in a rare earth Zintl compound with a new structure type: EuIn 2P 2

Jiong Jiang; Susan M. Kauzlarich

doi:10.1021/cm0520362

Colossal magnetoresistance in a rare earth Zintl compound with a new structure type: EuIn ₂P ₂

Jiong Jiang, Susan M. Kauzlarich

Chemistry

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

Single crystals of a new Zintl compound, EuIn ₂P ₂, were grown from indium metal as a flux solvent. The compound crystallizes in the hexagonal P6(3)/mmc space group with a unit cell of a = 4.0829(6) Å, c = 17.595(4) Å, and Z = 2. It contains alternating Eu ²⁺ layers and [In ₂P ₂] ^2- layers. This compound is paramagnetic at high temperatures with a magnetic transition at 24 K. In the magnetically ordered state, it shows large magnetic anisotropy. The temperature-dependent resistivity of this compound suggests interaction between conduction electrons and local spins. Negative colossal magnetoresistance of up to -398% (MR = {(ρ(H) - ρ(0)]/ρ(H)} × 100%) at 5 T is observed at 24 K.

Original language	English (US)
Pages (from-to)	435-441
Number of pages	7
Journal	Chemistry of Materials
Volume	18
Issue number	2
DOIs	https://doi.org/10.1021/cm0520362
State	Published - Jan 24 2006

ASJC Scopus subject areas

Materials Chemistry
Materials Science(all)

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title = "Colossal magnetoresistance in a rare earth Zintl compound with a new structure type: EuIn 2P 2",

abstract = "Single crystals of a new Zintl compound, EuIn 2P 2, were grown from indium metal as a flux solvent. The compound crystallizes in the hexagonal P6(3)/mmc space group with a unit cell of a = 4.0829(6) {\AA}, c = 17.595(4) {\AA}, and Z = 2. It contains alternating Eu 2+ layers and [In 2P 2] 2- layers. This compound is paramagnetic at high temperatures with a magnetic transition at 24 K. In the magnetically ordered state, it shows large magnetic anisotropy. The temperature-dependent resistivity of this compound suggests interaction between conduction electrons and local spins. Negative colossal magnetoresistance of up to -398% (MR = {(ρ(H) - ρ(0)]/ρ(H)} × 100%) at 5 T is observed at 24 K.",

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AB - Single crystals of a new Zintl compound, EuIn 2P 2, were grown from indium metal as a flux solvent. The compound crystallizes in the hexagonal P6(3)/mmc space group with a unit cell of a = 4.0829(6) Å, c = 17.595(4) Å, and Z = 2. It contains alternating Eu 2+ layers and [In 2P 2] 2- layers. This compound is paramagnetic at high temperatures with a magnetic transition at 24 K. In the magnetically ordered state, it shows large magnetic anisotropy. The temperature-dependent resistivity of this compound suggests interaction between conduction electrons and local spins. Negative colossal magnetoresistance of up to -398% (MR = {(ρ(H) - ρ(0)]/ρ(H)} × 100%) at 5 T is observed at 24 K.

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