870 K 时的锑-钴-铟体系以及 Tb2CoIn8、Tb23Co7In20、Tb26Co5In12 和 Tb6Co2In 的磁有序性

IF 3.2 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR Journal of Solid State Chemistry Pub Date : 2024-11-01 DOI:10.1016/j.jssc.2024.125089

Haifeng Chen , Jinlei Yao , A.V. Garshev , V.O. Yapaskurt , A.V. Morozkin

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引用次数: 0

摘要

通过 X 射线粉末衍射和微探针元素分析，研究了 870 K 下的 Tb-Co-In 系统。已知化合物 TbCo2In（PrCo2Ga 型）、Tb2CoIn8（Ho2CoGa8 型）、Tb11Co4In9（Nd11Pd4In9 型）、Tb23Co7In20（Er23Co6.7In20.3 型）、Tb6Co2In（Ho6Co2Ga 型）和 Tb14Co3In3（Gd14Co3In2.在 870 K 时，Tb-Co-In 体系中还发现了新的 Sm26Co11Ga6 型 Tb26Co5-6In12-11（空间群 P4/mbm，N 127，tP86）、∼Tb18Co67In15、∼Tb5Co3In2（未知结构）和 Qusibinary PuNi3 型 Tb1-0.74Co3In0-0.26 。Ho2CoGa8 型 Tb2CoIn8 在 TN = 32 K 时显示出反铁磁有序和场敏顺磁态，Sm26Co11Ga6 型 Tb26Co5In12 在 72 K 时显示出居里温度（TC）。Er23Co6.7In20.3 型 Tb23Co7In20 铁磁体在 10 kOe 磁场中的 TC = 56 K 和 Tm ∼ 28 K，在低温下显示出硬磁性。Ho6Co2Ga 型 Tb6Co2In 在 75 K 以下显示出场敏感铁反铁磁有序性。

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Tb–Co–In system at 870 K and magnetic ordering of Tb2CoIn8, Tb23Co7In20, Tb26Co5In12 and Tb6Co2In

The Tb–Co–In system at 870 K has been investigated by X-ray powder diffraction and microprobe elemental analyses. The existence of the known compounds TbCo₂In (PrCo₂Ga-type), Tb₂CoIn₈ (Ho₂CoGa₈-type), Tb₁₁Co₄In₉ (Nd₁₁Pd₄In₉-type), Tb₂₃Co₇In₂₀ (Er₂₃Co_6.7In_20.3-type), Tb₆Co₂In (Ho₆Co₂Ga-type) and Tb₁₄Co₃In₃ (Gd₁₄Co₃In_2.7-type) has been confirmed and novel Sm₂₆Co₁₁Ga₆-type Tb₂₆Co₅–₆In_12-11 (space group P4/mbm, N 127, tP86), ∼Tb₁₈Co₆₇In₁₅, ∼Tb₅Co₃In₂ (unknown structure) and qusibinary PuNi₃-type Tb_1-0.74Co₃In_0-0.26 have been detected in the Tb–Co–In system at 870 K. The appreciable solubility of other binaries was no observed in the Tb–Co–In system.

The Ho₂CoGa₈-type Tb₂CoIn₈ shows antiferromagnetic ordering at T_N = 32 K with field-sensitive paramagnetic state and the Sm₂₆Co₁₁Ga₆-type Tb₂₆Co₅In₁₂ exhibits the Curie temperature (T_C) at 72 K. The Er₂₃Co_6.7In_20.3-type Tb₂₃Co₇In₂₀ ferromagnet with T_C = 56 K and T_m ∼28 K in a field of 10 kOe and it shows hard magnetic properties at low temperatures. The Ho₆Co₂Ga-type Tb₆Co₂In shows field-sensitive ferro-antiferromagnetic ordering below 75 K.

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.