A New Family of Disorder-Free Rare-Earth-Based Kagome Lattice Magnets: Structure and Magnetic Characterizations of RE3BWO9 (RE = Pr, Nd, Gd-Ho) Boratotungstates

被引：27

作者：

Ashtar, Malik ^{[1
,2
]}

Guo, Jinjin ^{[3
]}

Wan, Zongtang ^{[1
,2
]}

Wang, Yongqiang ^{[3
]}

Gong, Gaoshang ^{[3
]}

Liu, Yong ^{[4
]}

Su, Yuling ^{[3
]}

Tian, Zhaoming ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China

[3] Zhengzhou Univ Light Ind, Sch Phys & Elect Engn, Zhengzhou 450002, Henan, Peoples R China

[4] Wuhan Univ, Sch Phys, Wuhan 430072, Peoples R China

来源：

INORGANIC CHEMISTRY | 2020年 / 59卷 / 08期

基金：

中国国家自然科学基金;

关键词：

CRYSTAL-FIELD; SPIN ICE; SM; STATE; LA; TB; SUSCEPTIBILITY; EU;

D O I：

10.1021/acs.inorgchem.9b03547

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Exploration of rare-earth (RE)-based Kagome lattice magnets with spin-orbital entangled j(eff) = 1/2 moments will provide a new platform for investigating the exotic magnetic phases. Here, we report a new family of RE3BWO9 (RE = Pr,Nd,Gd -Ho) boratotungstates with magnetic RE3+ ions arranged on Kagome lattice and perform its structure and magnetic characterizations. These serial compounds crystallize in a hexagonal coordinated structure with space group P6(3) (no. 173), where magnetic RE3+ ions have distorted Kagome lattice connections within the ab plane and stacked in an AB-type fashion along the c axis. The interlayer RE-RE separation is comparable with that of the intralayer distance, forming 3-dimensional (3D) exchange coupled magnetic framework of RV' ions. The magnetic susceptibility data of RE3+ BWO9 (RE = Pr, Nd, Gd-Ho) reveal dominant antiferromagnetic interactions between magnetic RE3+ ions, but without visible magnetic ordering down to 2 K. The magnetization analyses for different RE3+ ions show diverse anisotropic behaviors, making RE3+ BWO9 as an appealing Kagome-lattice antiferromagnet to explore exotic magnetic phases.

引用

页码：5368 / 5376

页数：9

共 38 条

[1] REZnAl11O19 (RE = Pr, Nd, Sm-Tb): a new family of ideal 2D triangular lattice frustrated magnets [J].