Manganese--terbium (2/1) | 12502-81-7

• 分子结构分类: 无机化合物 - 均相金属化合物 - 金属间过渡金属化合物
• 英文名称: Manganese--terbium (2/1)
• 英文别名: manganese;terbium
• CAS: 12502-81-7
• 化学式: Mn₂Tb
• 分子量: 268.801
• InChiKey: XMZXPMWWJYNCKL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  3
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  Manganese--terbium (2/1) 、 氢气 以 neat (no solvent) 为溶剂， 生成
  参考文献：
  名称：

  TbMn2Hx 氢化物的结构和磁性能

  摘要：

  摘要 0 ≤ x ≤ 4.3 的 TbMn 2 H x 氢化物粉末样品通过 X 射线分析和 SQUID 磁力计在 2 到 375 K 的温度范围内进行表征。我们观察到结构相变与氢浓度和温度的函数关系. 特别是 x 的旋节线分解

  DOI：

  10.1016/s0925-8388(01)01820-5
• 作为产物：
  描述：

  氢化铽 、 锰 以 neat (no solvent) 为溶剂， 生成 Manganese--terbium (2/1)
  参考文献：
  名称：

  TbMn2立方金属间化合物中的巨大场致体积磁致伸缩

  摘要：

  摘要 对 Laves 相化合物 TbMn 2 进行了磁致伸缩和热膨胀测量，温度范围为 5-300K，使用高达 15 T 的高脉冲磁场。在 15 T 的磁场下达到 ω=-17×10 -3 的值，这构成了稀土金属间化合物中从未观察到的最高强制磁致伸缩。这个合理的结果是基于有序 Mn 磁矩亚晶格在足够高的外加磁场下的不稳定性来解释的。

  DOI：

  10.1016/0038-1098(93)90208-5

文献信息

• Field induced first order magnetic transition and associated volume effect in TbMn2
  作者：E. Lelièvre-Berna、J. Rouchy、R. Ballou

  DOI：10.1016/0304-8853(94)90182-1

  日期：1994.10

  Abstract Magnetostriction experiments have been performed on a TbMn2 polycrystalline sample. A large volume shrinkage is shown when applying a magnetic field in the ordered low temperature magnetic phase. It confirms the occurrence of a field induced first order transition from a Mn antiferromagnetism to a magnetic structure where magnetic and non-magnetic Mn are coexisting.

  摘要 对 TbMn2 多晶样品进行了磁致伸缩实验。当在有序的低温磁相中施加磁场时，显示出大的体积收缩。它证实了从 Mn 反铁磁性到磁性和非磁性 Mn 共存的磁性结构的场诱导一级跃迁的发生。
• Large reversible magnetocaloric effect in RMn2 (R=Tb, Dy, Ho, Er) compounds
  作者：Wenliang Zuo、Fengxia Hu、Jirong Sun、Baogen Shen

  DOI：10.1016/j.jallcom.2013.03.185

  日期：2013.10

  investigated. TbMn2 and DyMn2 crystallize in cubic Laves phase structure (C15 type), whereas HoMn2 and ErMn2 crystallize in hexagonal Laves phase structure (C14 type). For TbMn2 compound, the field-induced metamagnetic transition accompanying a spontaneous cell volume expansion is observed (inverse MCE), which leads to a large positive value (8.3 J kg � 1 K � 1 ) of magnetic entropy change around 36

  研究了 RMn2 (R = Tb、Dy、Ho、Er) 化合物的磁热效应 (MCE)。TbMn2 和 DyMn2 以立方 Laves 相结构（C15 型）结晶，而 HoMn2 和 ErMn2 以六方 Laves 相结构（C14 型）结晶。对于 TbMn2 化合物，观察到伴随自发细胞体积膨胀的场诱导变磁转变（逆 MCE），这导致在场下 36 K 附近磁熵变化的大正值（8.3 J kg 1 K 1 ） 0-1 T 的变化，而其他 RMn2 (R = Dy, Ho, Er) 化合物的磁熵变 (DSM) 和制冷剂容量 (RC) 的最大值为 15.7, 18.4, 25.5 J kg 1 K 1 和 403.6、404.3、316.0 J kg 1 在它们的 TC 周围，对于 0-5 T 的场变化，热和磁滞损耗分别可以忽略不计。
• Magnetic Characteristics of Laves Phase RMn₂ Compounds (R=Gd, Tb, Dy, Ho and Er)
  作者：Yoshikazu Makihara、Yoshikazu Andoh、Yuzo Hashimoto、Hironobu Fujii、Masahiro Hasuo、Tetsuhiko Okamoto

  DOI：10.1143/jpsj.52.629

  日期：1983.2
• Magnetic and hydrogen ordering in the frustrated Laves hydrides<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>R</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Mn</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">H</mml:mi></mml:mrow><mml:mrow><mml:mn>4.5</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo>(</mml:mo><mml:mi>R</mml:mi><mml:mo>=</mml:mo><mml:mi mathvariant="normal">Y</mml:mi><mml:mo>,</mml:mo></mml:math>Gd, Tb, Dy, Ho): A neutron-diffraction study
  作者：I. N. Goncharenko、I. Mirebeau、A. V. Irodova、E. Suard

  DOI：10.1103/physrevb.59.9324

  日期：——

  We have studied the magnetic and crystal structures of different Laves hydrides RMn2H4.5 (R = Y, Gd, Tb, Dy, Ho), having the cubic C15 structure at high temperature. We observe a strong coupling between the hydrogen and magnetic order in the frustrated Mn sublattice. The Neel temperature coincides with the ordering temperature in the hydrogen sublattice, resulting in a single magnetostructural transition. In contrast to the RMn2 compounds, in the hydrides the Mn-Mn magnetic interaction dominates and it imposes the magnetic order in the rare-earth sublattice. On the other hand, the anisotropy of the rare-earth ion strongly influences the orientation of the magnetic moments at low temperature. The Laves hydrides show a very unusual case where the structural and magnetic orders strongly interact with each other. They also offer many examples of the interplay between the localized Mn moments and the rare-earth moments. [S0163-1829(99)13213-2].
• Valence band and magnetic moment of Mn in TbMn2 and TbMn2D2 studied by Kβ5 emission X-ray spectroscopy
  作者：E. Jarocki、A. Kozłowski、H. Figiel

  DOI：10.1016/j.jallcom.2004.11.115

  日期：2005.12

  Manganese K-beta 5 X-ray fluorescence spectra were measured for Mn-metal, TbMn2 and TbMn2D2. Experimental results show that in both examined Tb-Mn compounds intensities of K-beta 5 lines are greatly reduced approximately to one third of those in elemental Mn. Since the K-beta 5 line is usually believed to be due to electron quadrupole transition from Mn 3d to the 1s(-1) hole, then the observed shape of this line can probe the d-states of manganese. The results are compared to the relevant studies of K-beta 1.3 lineshape and the neutron diffraction investigations. We suggest that the manganese magnetic moment in both compounds is frustrated or in a noncollinear arrangement. (c) 2005 Elsevier B.V. All rights reserved.