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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 321-326 |
| Number of pages | 6 |
| Journal | Journal of Solid State Chemistry |
| Volume | 238 |
| DOIs | |
| State | Published - Jun 1 2016 |
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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
Cite this
Magnetic remanence in Yb14-xRExMnSb11 (RE=Tb, Dy, Ho) single crystals. / Grebenkemper, Jason H.; Hu, Yufei; Abdusalyamova, M. N.; Makhmudov, F. A.; Kauzlarich, Susan M.
In: Journal of Solid State Chemistry, Vol. 238, 01.06.2016, p. 321-326.Research output: Contribution to journal › Article
}
TY - JOUR
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
UR - http://www.scopus.com/inward/record.url?scp=84963653894&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84963653894&partnerID=8YFLogxK
U2 - 10.1016/j.jssc.2016.03.037
DO - 10.1016/j.jssc.2016.03.037
M3 - Article
AN - SCOPUS:84963653894
VL - 238
SP - 321
EP - 326
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
ER -