Weak ferromagnetism in a diamagnetically diluted sublattice of Fe3+ ions in solid solutions Y2-xFe1+xTaO7 (x=0-0.2) with pyrochlore-like structure

被引：4

作者：

Egorysheva, Anna, V ^{[1
]}

Ellert, Olga G. ^{[1
]}

Popova, Elena F. ^{[1
]}

Kirdyankin, Denis I. ^{[1
]}

Maksimov, Yuri, V ^{[2
]}

机构：

[1] Russian Acad Sci, NS Kurnakov Inst Gen & Inorgan Chem, Moscow 119991, Russia

[2] Russian Acad Sci, NN Semenov Res Ctr Chem Phys, Moscow 119991, Russia

来源：

MENDELEEV COMMUNICATIONS | 2023年 / 33卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

Y2FeTaO7; solid solutions; structural transition; pyrochlore-like structure; spin glass; weak ferromagnetism; Dzyaloshinskii-Moriya interaction; MAGNETIC-PROPERTIES; SPIN REORIENTATION; TRANSITIONS; EXCHANGE;

D O I：

10.1016/j.mencom.2023.06.025

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of layered solid solutions Y2-xFe1+xTaO7 (x = 0-0.2) was synthesized and a structural transition (space group R (3) over bar <-> space group P3(1)21) was observed at x = 0.1. In Y2-xFe1+xTaO7, which belongs to both structural types, geometrically frustrated 2D sublattices of kagome-type are formed, in which Fe3+ ions are coupled by short-range antiferromagnetic interactions, and the transition to the spin glass state is observed at T-g similar to 4.3 K. A phenomenon of weak ferromagnetism has been detected, the cause of which is probably a small tilt of the Fe3+ spins due to the Dzyaloshinskii-Moriya antisymmetric superexchange.

引用

页码：519 / 521

页数：3