Negative magnetoresistance in a magnetic semiconducting zintl phase: Eu3In2P4

Jiong Jiang, Marilyn M. Olmstead, Susan M. Kauzlarich, Han Oh Lee, Peter Klavins, Zachary Fisk

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A new rare earth metal Zintl phase, Eu3In2P 4, was synthesized by utilizing a metal flux method. The compound crystallizes in the orthorhombic space group Pnnm with the cell parameters a = 16.097(3) Å, b = 6.6992(13) Å, c = 4.2712(9) Å, and Z = 2 (T = 90(2) K, R1 = 0.0159, wR2 = 0.0418 for all data). It is isostructural to Sr3In2P4. The structure consists of tetrahedral dimers, [In2P2P4/2]6-, that form a one-dimensional chain along the c axis. Three europium atoms interact via a Eu-Eu distance of 3.7401(6) Å to form a straight line triplet. Single-crystal magnetic measurements show anisotropy at 30 K and a magnetic transition at 14.5 K. High-temperature data give a positive Weiss constant, which suggests ferromagnetism, while the shape of susceptibility curves (χ vs T) suggests antiferromagnetism. Heat capacity shows a magnetic transition at 14.5 K that is suppressed with field. This compound is a semiconductor according to the temperature-dependent resistivity measurements with a room-temperature resistivity of 0.005(1) Ω m and Eg = 0.452(4) eV. It shows negative magnetoresistance below the magnetic ordering temperature. The maximum magnetoresistance (Δρ/ρ(H)) is 30% at 2 K with H = 5 T.

Original languageEnglish (US)
Pages (from-to)5322-5327
Number of pages6
JournalInorganic Chemistry
Volume44
Issue number15
DOIs
StatePublished - Jul 25 2005

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Magnetoresistance
electrical resistivity
antiferromagnetism
europium
metals
ferromagnetism
magnetic measurement
Rare Earth Metals
rare earth elements
dimers
specific heat
Europium
magnetic permeability
Antiferromagnetism
Temperature
anisotropy
temperature
Ferromagnetism
single crystals
Magnetic variables measurement

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Jiang, J., Olmstead, M. M., Kauzlarich, S. M., Lee, H. O., Klavins, P., & Fisk, Z. (2005). Negative magnetoresistance in a magnetic semiconducting zintl phase: Eu3In2P4. Inorganic Chemistry, 44(15), 5322-5327. https://doi.org/10.1021/ic0504036

Negative magnetoresistance in a magnetic semiconducting zintl phase : Eu3In2P4. / Jiang, Jiong; Olmstead, Marilyn M.; Kauzlarich, Susan M.; Lee, Han Oh; Klavins, Peter; Fisk, Zachary.

In: Inorganic Chemistry, Vol. 44, No. 15, 25.07.2005, p. 5322-5327.

Research output: Contribution to journalArticle

Jiang, J, Olmstead, MM, Kauzlarich, SM, Lee, HO, Klavins, P & Fisk, Z 2005, 'Negative magnetoresistance in a magnetic semiconducting zintl phase: Eu3In2P4', Inorganic Chemistry, vol. 44, no. 15, pp. 5322-5327. https://doi.org/10.1021/ic0504036
Jiang J, Olmstead MM, Kauzlarich SM, Lee HO, Klavins P, Fisk Z. Negative magnetoresistance in a magnetic semiconducting zintl phase: Eu3In2P4. Inorganic Chemistry. 2005 Jul 25;44(15):5322-5327. https://doi.org/10.1021/ic0504036
Jiang, Jiong ; Olmstead, Marilyn M. ; Kauzlarich, Susan M. ; Lee, Han Oh ; Klavins, Peter ; Fisk, Zachary. / Negative magnetoresistance in a magnetic semiconducting zintl phase : Eu3In2P4. In: Inorganic Chemistry. 2005 ; Vol. 44, No. 15. pp. 5322-5327.
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abstract = "A new rare earth metal Zintl phase, Eu3In2P 4, was synthesized by utilizing a metal flux method. The compound crystallizes in the orthorhombic space group Pnnm with the cell parameters a = 16.097(3) {\AA}, b = 6.6992(13) {\AA}, c = 4.2712(9) {\AA}, and Z = 2 (T = 90(2) K, R1 = 0.0159, wR2 = 0.0418 for all data). It is isostructural to Sr3In2P4. The structure consists of tetrahedral dimers, [In2P2P4/2]6-, that form a one-dimensional chain along the c axis. Three europium atoms interact via a Eu-Eu distance of 3.7401(6) {\AA} to form a straight line triplet. Single-crystal magnetic measurements show anisotropy at 30 K and a magnetic transition at 14.5 K. High-temperature data give a positive Weiss constant, which suggests ferromagnetism, while the shape of susceptibility curves (χ vs T) suggests antiferromagnetism. Heat capacity shows a magnetic transition at 14.5 K that is suppressed with field. This compound is a semiconductor according to the temperature-dependent resistivity measurements with a room-temperature resistivity of 0.005(1) Ω m and Eg = 0.452(4) eV. It shows negative magnetoresistance below the magnetic ordering temperature. The maximum magnetoresistance (Δρ/ρ(H)) is 30{\%} at 2 K with H = 5 T.",
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