Stair-like Metamagnetic Transition Induced by Controlled Introduction of Oxygen Deficiency in La0.5Ca0.5MnO3-δ

被引：14

作者：

Cortes-Gil, R. ^{[1
]}

Ruiz-Gonzalez, L. ^{[1
]}

Alonso, J. M. ^{[2
,3
]}

Garcia-Hernandez, M. ^{[3
]}

Hernando, A. ^{[2
,4
]}

Gonzalez-Calbet, J. M. ^{[1
]}

机构：

[1] Univ Complutense CEI Moncloa, Fac Quim, UCM, Dept Quim Inorgan, Madrid 28040, Spain

[2] UCM, CSIC, ADIF, Inst Ciencia Mat, Madrid 28230, Spain

[3] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain

[4] Univ Complutense, Fac Fis, Dept Fis Mat, E-28040 Madrid, Spain

来源：

CHEMISTRY OF MATERIALS | 2012年 / 24卷 / 13期

关键词：

stair-like metamagnetism; La0.5Ca0.5MnO2.95; anionic vacancies; phase segregation; charge and orbital ordering; MAGNETIC-FIELD; TRANSPORT-PROPERTIES; CHARGE; STEPS; VACANCIES; FERROMAGNETISM; STATE;

D O I：

10.1021/cm300927w

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：

Stair-like metamagnetic transitions in the oxygen deficient La0.5Ca0.5MnO3-delta perovskite are here for first time reported. This experimental fact sheds light on the knowledge of metamagnetic transition in anion deficient phase segregations systems. Actually, it is shown that controlled reduction of the oxygen content constitutes an alternative pathway to the chemical doping at the A and B positions of the perovskite sublattice. In this way, point defects are created inducing the stair-like transition in a CE-type AFM (antiferromagnetic) manganite.

引用

页码：2519 / 2526

页数：8

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