Magnetic structure of the YbMn_2SbBi compound

A.V.Morozkin; P. Manfrinetti

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Magnetic structure of the YbMn_2SbBi compound

机译：YbMn_2SbBi化合物的磁性结构

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A neutron diffraction investigation has been carried out on the trigonal La_2O_2S-type (hP5, space group P3m/, No. 164; also CaAl_2Si_2-type) YbMn_2SbBi intermetallic compound. The YbMn_2SbBi presents anti-ferromagnetic ordering below 138(3)K and ferrimagnetic ordering below 112(3)K. Between 138 and 112 K, the magnetic structure of YbMn_2SbBi consists of antiferromagnetically coupled aft-plane magnetic moments of the manganese atoms (D_(1d) magnetic point group). Below 112(3)K, the ferromagnetic components of Yb and Mn begin to develop, and the magnetic structure of YbMn_2SbBi becames the sum antiferromagnetic component with D_(1d) magnetic point group and ferromagnetic one with C_2 magnetic point group. The magnitude of Yb and Mn magnetic moments in YbMn_2SbBi at 2 K (M_(Yb) = 3.6(2) μ_B, M_(Mn) =3.5(2) μ_B) correspond to the trivalent state of the Yb ions and tetravalent state of the Mn ions.

机译：对三角形La_2O_2S型（hP5，空间群P3m /，No。164;也为CaAl_2Si_2型）YbMn_2SbBi金属间化合物进行了中子衍射研究。 YbMn_2SbBi在138（3）K以下呈现反铁磁有序，在112（3）K以下呈现亚铁磁有序。在138和112 K之间，YbMn_2SbBi的磁性结构由锰原子（D_（1d）磁性点组）的反铁磁耦合的后平面磁矩组成。在112（3）K以下，Yb和Mn的铁磁成分开始发展，YbMn_2SbBi的磁性结构变成具有D_（1d）磁点群的反铁磁成分和具有C_2磁点群的铁磁总和。 YbMn_2SbBi在2 K时（M_（Yb）= 3.6（2）μ_B，M_（Mn）= 3.5（2）μ_B）的Yb和Mn磁矩的大小对应于Yb离子的三价态和Yb离子的四价态。锰离子。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |2011年第9期|共3页
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A.V.Morozkin; P. Manfrinetti;
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Rare earth intermetallics; Ytterbium manganese antimonide and bismuthide; Neutron diffraction; Magnetic structure;

机译：稀土金属间化合物锑锰锑化铋铋中子衍射磁性结构;

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Magnetic structure of the YbMn_2SbBi compound

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