High-pressure synthesis, crystal structure, and magnetic properties of the Shastry-Sutherland-lattice oxides BaLn2ZnO5 (Ln = Pr, Sm, Eu)

被引：14
作者：
Ishii, Yuto [1 ]
Chen, Jie [2 ,3 ]
Yoshida, Hiroyuki K. [1 ]
Oda, Migaku [1 ]
Christianson, Andrew D. [4 ]
Yamaura, Kazunari [2 ,3 ]
机构：
[1] Hokkaido Univ, Dept Phys, Kita Ku, North 10 West 8, Sapporo, Hokkaido 0600810, Japan
[2] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan
[3] Hokkaido Univ, Grad Sch Chem Sci & Engn, Kita Ku, North 10 West 8, Sapporo, Hokkaido 0600810, Japan
[4] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2020年 / 289卷
关键词：
BaPr2ZnO5; BaSm2ZnO5; BaEu2ZnO5; Shastry-sutherland lattice; High-pressure synthesis; 3-DIMENSIONAL VISUALIZATION; GROUND-STATE; GD; HO; DY; ND; LA;
D O I：
10.1016/j.jssc.2020.121489
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
BaPr2ZnO5, BaSm2ZnO5, and BaEu2ZnO5 - a series of 4f magnetic insulators comprising the Shastry-Sutherland lattice - were synthesized via a solid-state reaction under high-pressure and high-temperature conditions. The magnetic behaviors are well characterized by the localized 4f electrons of each Ln(3+) (= Pr, Sm, Eu) under the influence of the crystal-electric field of the surrounding ions. The magnetic susceptibility and heat capacity measurements of BaPr2ZnO5 (Pr3+; 4f(2) H-3(4))indicate the splitting of the ground state J-multiples due to the crystal-electric field. BaSm2ZnO5 (Sm3+; 4f(5) H-6(5/2)) is a strong Van Vleck paramagnet, while BaEu2ZnO5 is non-magnetic due to the F-7(0) ground state (Eu3+; 4f(6) F-7(0)). The series of new oxides enriches a group of the Shastry-Sutherland lattice materials and helps to develop a range of two-dimensional quantum materials.
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页数：7
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