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Title: Magnetic remanence in Yb{sub 14−x}RE{sub x}MnSb{sub 11} (RE=Tb, Dy, Ho) single crystals

Abstract

Single crystals of Yb{sub 14−x}RE{sub x}MnSb{sub 11} (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 Ca{sub 14}AlSb{sub 11} structure type in the I4{sub 1}/acd space group. The RE{sup 3+}preferentially substitutes on the Yb(1) site which is the smallest volume Yb containing polyhedron. In the case of Ho{sup 3+}, a small amount of Ho{sup 3+} also substitutes on the Yb(4) site. The ferromagnetic ordering temperature of Yb{sub 14}MnSb{sub 11} 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 Mn{sup 2+} local moment. The effective moments, μ{sub 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{sub 14−x}RE{sub x}MnSb{sub 11} 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. - Graphical abstract: Field dependent susceptibility loops revealed magnetic remanence in these materials, which hasmore » not been previously observed in Yb{sub 14}MnSb{sub 11} compounds. The coercive field increases with the strength of the paramagnetic moment for the substituting rare earth and the amount of the rare earth that is substituted. Display Omitted - Highlights: • Yb{sub 14−x}RE{sub x}MnSb{sub 11} (RE=Tb, Dy, & Ho) were synthesized with x~0.2 and x~0.4. • Tb, Dy, & Ho preferentially substitute on the Yb(1) site. • Samples with the largest x and largest RE moment have the largest coercive field. • There is a split between zero field cooled and field cooled susceptibility.« less

Authors:
;  [1]; ;  [2];  [1]
  1. Department of Chemistry, University of California, Davis, 95616 CA (United States)
  2. The Institute of Chemistry of the Tajik Academy of Sciences, 229/2, Aini Street, 734063 Dushanbe (Tajikistan)
Publication Date:
OSTI Identifier:
22584136
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 238; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CATIONS; ELECTRONS; FERROMAGNETISM; HOLMIUM IONS; HYSTERESIS; MANGANESE IONS; MONOCRYSTALS; PARAMAGNETISM; RARE EARTHS; SOLID SOLUTIONS; SOLIDS; SPACE GROUPS; TETRAGONAL LATTICES

Citation Formats

Grebenkemper, Jason H., Hu, Yufei, Abdusalyamova, M.N., Makhmudov, F.A., and Kauzlarich, Susan M. Magnetic remanence in Yb{sub 14−x}RE{sub x}MnSb{sub 11} (RE=Tb, Dy, Ho) single crystals. United States: N. p., 2016. Web. doi:10.1016/J.JSSC.2016.03.037.
Grebenkemper, Jason H., Hu, Yufei, Abdusalyamova, M.N., Makhmudov, F.A., & Kauzlarich, Susan M. Magnetic remanence in Yb{sub 14−x}RE{sub x}MnSb{sub 11} (RE=Tb, Dy, Ho) single crystals. United States. doi:10.1016/J.JSSC.2016.03.037.
Grebenkemper, Jason H., Hu, Yufei, Abdusalyamova, M.N., Makhmudov, F.A., and Kauzlarich, Susan M. Wed . "Magnetic remanence in Yb{sub 14−x}RE{sub x}MnSb{sub 11} (RE=Tb, Dy, Ho) single crystals". United States. doi:10.1016/J.JSSC.2016.03.037.
@article{osti_22584136,
title = {Magnetic remanence in Yb{sub 14−x}RE{sub x}MnSb{sub 11} (RE=Tb, Dy, Ho) single crystals},
author = {Grebenkemper, Jason H. and Hu, Yufei and Abdusalyamova, M.N. and Makhmudov, F.A. and Kauzlarich, Susan M.},
abstractNote = {Single crystals of Yb{sub 14−x}RE{sub x}MnSb{sub 11} (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 Ca{sub 14}AlSb{sub 11} structure type in the I4{sub 1}/acd space group. The RE{sup 3+}preferentially substitutes on the Yb(1) site which is the smallest volume Yb containing polyhedron. In the case of Ho{sup 3+}, a small amount of Ho{sup 3+} also substitutes on the Yb(4) site. The ferromagnetic ordering temperature of Yb{sub 14}MnSb{sub 11} 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 Mn{sup 2+} local moment. The effective moments, μ{sub 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{sub 14−x}RE{sub x}MnSb{sub 11} 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. - Graphical abstract: Field dependent susceptibility loops revealed magnetic remanence in these materials, which has not been previously observed in Yb{sub 14}MnSb{sub 11} compounds. The coercive field increases with the strength of the paramagnetic moment for the substituting rare earth and the amount of the rare earth that is substituted. Display Omitted - Highlights: • Yb{sub 14−x}RE{sub x}MnSb{sub 11} (RE=Tb, Dy, & Ho) were synthesized with x~0.2 and x~0.4. • Tb, Dy, & Ho preferentially substitute on the Yb(1) site. • Samples with the largest x and largest RE moment have the largest coercive field. • There is a split between zero field cooled and field cooled susceptibility.},
doi = {10.1016/J.JSSC.2016.03.037},
journal = {Journal of Solid State Chemistry},
number = ,
volume = 238,
place = {United States},
year = {Wed Jun 15 00:00:00 EDT 2016},
month = {Wed Jun 15 00:00:00 EDT 2016}
}