Magnetic remanence in Yb14-xRExMnSb11 (RE=Tb, Dy, Ho) single crystals

Jason H. Grebenkemper; Yufei Hu; M. N. Abdusalyamova; F. A. Makhmudov; Susan M. Kauzlarich

doi:10.1016/j.jssc.2016.03.037

Magnetic remanence in Yb_14-xRE_xMnSb₁₁ (RE=Tb, Dy, Ho) single crystals

Jason H. Grebenkemper, Yufei Hu, M. N. Abdusalyamova, F. A. Makhmudov, Susan M. Kauzlarich

Chemistry

Research output: Contribution to journal › Article

3 Scopus citations

Abstract

Single crystals of Yb_14-xRE_xMnSb₁₁ (x~0.1, 0.4; RE = Tb, Dy, Ho) have been prepared as a solid solution by Sn flux reactions of the elements. They crystallize in the Ca₁₄AlSb₁₁ structure type in the I4₁/acd space group. The RE³⁺preferentially substitutes on the Yb(1) site which is the smallest volume Yb containing polyhedron. In the case of Ho³⁺, a small amount of Ho³⁺ also substitutes on the Yb(4) site. The ferromagnetic ordering temperature of Yb₁₄MnSb₁₁ is reduced from 53 K to 41 K as x increases and dependent on the identity of the RE. This is attributed to the reduction in carriers and reduced screening of the Mn²⁺ local moment. The effective moments, μ_eff, agree well with the calculated moments assuming the RE substitutes as a trivalent cation. The largest coercive field is observed for RE = Dy (1000 Oe). For the maximum x of Yb_14-xRE_xMnSb₁₁ there are enough carriers for the Ruderman-Kittel-Kasuya-Yosida (RKKY) mechanism of magnetic coupling via conduction electrons to still be valid in describing the ferromagnetic ordering.

Original language	English (US)
Pages (from-to)	321-326
Number of pages	6
Journal	Journal of Solid State Chemistry
Volume	238
DOIs	https://doi.org/10.1016/j.jssc.2016.03.037
State	Published - Jun 1 2016

Keywords

Ferromagnetism
Half-metal
Hysteresis
Kondo
YbMnSb
Zintl phase

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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Grebenkemper, J. H., Hu, Y., Abdusalyamova, M. N., Makhmudov, F. A., & Kauzlarich, S. M. (2016). Magnetic remanence in Yb_14-xRE_xMnSb₁₁ (RE=Tb, Dy, Ho) single crystals. Journal of Solid State Chemistry, 238, 321-326. https://doi.org/10.1016/j.jssc.2016.03.037

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title = "Magnetic remanence in Yb14-xRExMnSb11 (RE=Tb, Dy, Ho) single crystals",

abstract = "Single crystals of Yb14-xRExMnSb11 (x~0.1, 0.4; RE = Tb, Dy, Ho) have been prepared as a solid solution by Sn flux reactions of the elements. They crystallize in the Ca14AlSb11 structure type in the I41/acd space group. The RE3+preferentially substitutes on the Yb(1) site which is the smallest volume Yb containing polyhedron. In the case of Ho3+, a small amount of Ho3+ also substitutes on the Yb(4) site. The ferromagnetic ordering temperature of Yb14MnSb11 is reduced from 53 K to 41 K as x increases and dependent on the identity of the RE. This is attributed to the reduction in carriers and reduced screening of the Mn2+ local moment. The effective moments, μeff, agree well with the calculated moments assuming the RE substitutes as a trivalent cation. The largest coercive field is observed for RE = Dy (1000 Oe). For the maximum x of Yb14-xRExMnSb11 there are enough carriers for the Ruderman-Kittel-Kasuya-Yosida (RKKY) mechanism of magnetic coupling via conduction electrons to still be valid in describing the ferromagnetic ordering.",

keywords = "Ferromagnetism, Half-metal, Hysteresis, Kondo, YbMnSb, Zintl phase",

author = "Grebenkemper, {Jason H.} and Yufei Hu and Abdusalyamova, {M. N.} and Makhmudov, {F. A.} and Kauzlarich, {Susan M.}",

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T1 - Magnetic remanence in Yb14-xRExMnSb11 (RE=Tb, Dy, Ho) single crystals

AU - Grebenkemper, Jason H.

AU - Hu, Yufei

AU - Abdusalyamova, M. N.

AU - Makhmudov, F. A.

AU - Kauzlarich, Susan M.

PY - 2016/6/1

Y1 - 2016/6/1

N2 - Single crystals of Yb14-xRExMnSb11 (x~0.1, 0.4; RE = Tb, Dy, Ho) have been prepared as a solid solution by Sn flux reactions of the elements. They crystallize in the Ca14AlSb11 structure type in the I41/acd space group. The RE3+preferentially substitutes on the Yb(1) site which is the smallest volume Yb containing polyhedron. In the case of Ho3+, a small amount of Ho3+ also substitutes on the Yb(4) site. The ferromagnetic ordering temperature of Yb14MnSb11 is reduced from 53 K to 41 K as x increases and dependent on the identity of the RE. This is attributed to the reduction in carriers and reduced screening of the Mn2+ local moment. The effective moments, μeff, agree well with the calculated moments assuming the RE substitutes as a trivalent cation. The largest coercive field is observed for RE = Dy (1000 Oe). For the maximum x of Yb14-xRExMnSb11 there are enough carriers for the Ruderman-Kittel-Kasuya-Yosida (RKKY) mechanism of magnetic coupling via conduction electrons to still be valid in describing the ferromagnetic ordering.

AB - Single crystals of Yb14-xRExMnSb11 (x~0.1, 0.4; RE = Tb, Dy, Ho) have been prepared as a solid solution by Sn flux reactions of the elements. They crystallize in the Ca14AlSb11 structure type in the I41/acd space group. The RE3+preferentially substitutes on the Yb(1) site which is the smallest volume Yb containing polyhedron. In the case of Ho3+, a small amount of Ho3+ also substitutes on the Yb(4) site. The ferromagnetic ordering temperature of Yb14MnSb11 is reduced from 53 K to 41 K as x increases and dependent on the identity of the RE. This is attributed to the reduction in carriers and reduced screening of the Mn2+ local moment. The effective moments, μeff, agree well with the calculated moments assuming the RE substitutes as a trivalent cation. The largest coercive field is observed for RE = Dy (1000 Oe). For the maximum x of Yb14-xRExMnSb11 there are enough carriers for the Ruderman-Kittel-Kasuya-Yosida (RKKY) mechanism of magnetic coupling via conduction electrons to still be valid in describing the ferromagnetic ordering.

KW - Ferromagnetism

KW - Half-metal

KW - Hysteresis

KW - Kondo

KW - YbMnSb

KW - Zintl phase

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