RE3Sb3Zn2O14 (RE = La, Pr, Nd, Sm, Eu, Gd): a new family of pyrochlore derivatives with rare earth ions on a 2D Kagome lattice

Sanders M. B.; Krizan J. W.; Cava R. J.

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RE3Sb3Zn2O14 (RE = La, Pr, Nd, Sm, Eu, Gd): a new family of pyrochlore derivatives with rare earth ions on a 2D Kagome lattice

机译：RE3Sb3Zn2O14（RE = La，Pr，Nd，Sm，Eu，Gd）：在二维Kagome晶格上具有稀土离子的烧绿石衍生物的新族

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We report the synthesis and crystal structures of compounds of the type RE3Sb3Zn2O14 (La3Sb3Zn2O14, Pr3Sb3Zn2O14, Nd3Sb3Zn2O14, Sm3Sb3Zn2O14, Eu3Sb3Zn2O14, and Gd3Sb3Zn2O14), a series of novel rhombohedral pyrochlore derivatives with rare earth ions on a two-dimensional Kagome lattice. Synchrotron powder X-ray diffraction was used to solve the structures of the compounds. The rare earth ions are fully atomically ordered in a symmetric magnetic Kagome lattice. The nonmagnetic lattice contains one ion (Zn) that is displaced from the center of its coordination polyhedron in a random fashion. The structure differs from the common cubic A(2)B(2)O(7) pyrochlore type because it forms a layered rather than three-dimensional structure through ordering of ZnRE3 in the A sites and ZnSb3 in the B sites. Magnetic property measurements indicate the compounds display dominantly antiferromagnetic interactions between spins, and no signs of magnetic ordering above 1.8 K except possibly the Pr and Eu cases. RE3Sb3Zn2O14 is the first series of this structure type in which the rare earth is the only magnetic ion in the structure. This family is therefore an archetype for exploring rare earth magnetism on a two-dimensional Kagome lattice.

机译：我们报告了RE3Sb3Zn2O14类型的化合物（La3Sb3Zn2O14，Pr3Sb3Zn2O14，Nd3Sb3Zn2O14，Sm3Sb3Zn2O14，Eu3Sb3Zn2O14和Gd3Sb3Zn2O14）的合成和晶体结构。用同步加速器粉末X射线衍射分析化合物的结构。稀土离子在对称磁性Kagome晶格中完全原子有序。非磁性晶格包含一个离子（Zn），该离子以无规方式从其配位多面体的中心位移。该结构不同于常见的立方A（2）B（2）O（7）烧绿石类型，因为它通过A站点中的ZnRE3和B站点中的ZnSb3的顺序形成了层状而不是三维结构。磁性能测量表明，化合物在自旋之间显示出主要的反铁磁相互作用，并且除了Pr和Eu情况外，在1.8 K以上没有磁序的迹象。 RE3Sb3Zn2O14是这种结构类型的第一系列，其中稀土是结构中唯一的磁性离子。因此，该族是探索二维Kagome晶格上稀土磁性的原型。

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《Journal of Materials Chemistry, C. materials for optical and electronic devices》 |2016年第3期|共10页
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Sanders M. B.; Krizan J. W.; Cava R. J.;
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中图分类物理化学（理论化学）、化学物理学;
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1. RE3Sb3Zn2O14 (RE = La, Pr, Nd, Sm, Eu, Gd): a new family of pyrochlore derivatives with rare earth ions on a 2D Kagome lattice [J] . Sanders M. B., Krizan J. W., Cava R. J. Journal of Materials Chemistry, C. materials for optical and electronic devices . 2016,第3期

机译：RE3Sb3Zn2O14（RE = La，Pr，Nd，Sm，Eu，Gd）：在二维Kagome晶格上具有稀土离子的烧绿石衍生物的新族
2. A New Family of Disorder-Free Rare-Earth-Based Kagome Lattice Magnets: Structure and Magnetic Characterizations of RE3BWO9 (RE = Pr, Nd, Gd-Ho) Boratotungstates [J] . Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 2020,第8期

机译：一种新的无序稀土基本kagome晶格磁铁：Re3bwo9的结构和磁性特征（Re = Pr，Nd，Gd-ho）硼卟啉
3. Lattice dynamics of rare-earth titanates with the structure of pyrochlore R 2Ti2O7 (R = Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu): Ab initio calculation [J] . Chernyshev, V. A., Petrov, V. P., Nikiforov, A. E. Physics of the solid state . 2015,第5期

机译：具有烧绿石R 2Ti2O7结构的稀土钛酸盐的晶格动力学（R = Gd，Tb，Dy，Ho，Er，Tm，Yb和Lu）：从头算
4. Preparation and Electrical Properties of Interconnect Material Made by Substituting Mixed Rare Earth Oxides (Sm_2O_3, Gd_2O_3, Eu_2O_3 and CeO_2) for La_2O_3 in La_(1-x)Ca_xCrO_3(0.1≤x ≤ 0.4) [C] . Hong-Hai Zhong, Ji-Gui Cheng, Xing-Qin Liu, China International Conference on High-Performance Ceramics . 2007

机译：通过将混合稀土氧化物（SM_2O_3，GD_2O_3，EU_2O_3和CEO_2）在LA_2O_3中取代的互连材料的制备和电性能，LA_2O_3（0.1≤x≤0.4）
5. Structural and crystal chemical properties of rare-earth double phosphates and rare-earth titanate pyrochlores. [D] . Farmer, J. Matt. 2004

机译：稀土双磷酸盐和稀土钛酸盐烧绿石的结构和晶体化学性质。
6. Electrochemical Recovery and Behaviors of Rare Earth (La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm and Yb) Ions on Ni Sheets [O] . Min Hee Joo, So Jeong Park, Sung Min Hong, 2020

机译：稀土电化学回收和行为（LaCePrNdSm欧盟GdTbDyHoERTm和Yb）离子在Ni纸上
7. A New Family of Disorder-Free Rare-Earth-Based Kagome Lattice Magnets: Structure and Magnetic Characterizations of RE3BWO9 (RE = Pr, Nd, Gd–Ho) Boratotungstates [O] . Malik Ashtar, Jinjin Guo, Zongtang Wan, 2020

机译：一种新的无序稀土基本kagome晶格磁铁：Re3bwo9的结构和磁性特征（Re = Pr，Nd，Gd-ho）硼卟啉

RE3Sb3Zn2O14 (RE = La, Pr, Nd, Sm, Eu, Gd): a new family of pyrochlore derivatives with rare earth ions on a 2D Kagome lattice

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