Crystal structure and magnetic exchange in solid solutions La1-2xSr2xMn1-xSbxO3 (x ≤ 0.2)

被引：0

作者：

Karpinsky, D.B. ^{[1
]}

Troyanchuk, I.O. ^{[1
]}

Silibin, M.B. ^{[1
]}

Gavrilov, S.A. ^{[1
]}

Bushinsky, M.V. ^{[1
]}

Sikolenko, V. ^{[1
]}

Sirenko, V. ^{[1
]}

Tebbens, D. ^{[1
]}

机构：

[1] Helmholtz Zentrum Berlin for Materials and Energy, Berlin, Germany

来源：

Fizika Nizkikh Temperatur | 2015年 / 41卷 / 12期

关键词：

Crystal structure - Ferromagnetic materials - Lanthanum compounds - Manganites - Strontium compounds;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The crystal structure and magnetic properties for stochiometric La1-2xSr2xMn1-xSbxO3 (0.1 ≤ x ≤ 0.2) compositions with a manganese ions in the 3+ oxidation state are studied. The rhombohedral structure at ambient temperatures transforms at cooling to an orthorhombic one without any signature of orbital ordering. Compositions with x ≤ 0.2 reveal a ferromagnetic ordering, their magnetization decreases with a growing content of substitutions. The observed ferromagnetism is assumed to stem from disordering of orbitals and significant hybridization between eg orbitals of Mn3+ and 2p orbitals of oxygen.

引用

页码：1289 / 1295