On the doubts related to the local structure, magnetization and Griffiths phase of self-doped La1-xMnO3+δ manganites

被引：17

作者：

Ulyanov, A. N. ^{[1
]}

Pismenova, N. E. ^{[1
]}

Yang, D. S. ^{[2
]}

Levchenko, G. G. ^{[1
]}

机构：

[1] Natl Acad Sci, Donetsk Physicotech Inst, UA-83114 Donetsk, Ukraine

[2] Chungbuk Natl Univ, Dept Phys Educ, Cheongju 361763, South Korea

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 618卷

关键词：

Self-doped manganites; Crystal structure; Magnetic properties; Griffiths-like phase; X=0.22;

D O I：

10.1016/j.jallcom.2014.09.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Self-doped La1-xMnO3+delta manganites (x = 0.0, 0.05, 0.1, and 0.15) have been studied. Results for the x = 0.15 sample are in agreement with the suggestion that a part of manganese ions, being in a trivalent state, occupies a vacant A-site of the perovskite ABO(3) cell. Magnetic behavior of the samples above T-C exhibits Griffiths-like features. The observed Griffiths singularity is suggested to be due to strain accommodation caused by the vacancies in the A- and B-positions of the ABO(3) cell. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：607 / 608

页数：2