Mn site doping induced insulator to metal transition in Pr0.6Ca0.4MnO3

被引：54

作者：

Damay, F ^{[1
]}

Maignan, A ^{[1
]}

Martin, C ^{[1
]}

Raveau, B ^{[1
]}

机构：

[1] UNIV CAEN, F-14050 CAEN, FRANCE

来源：

JOURNAL OF APPLIED PHYSICS | 1997年 / 82卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.365929

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The doping of a manganese site with various M elements M=Fe3+, Al3+, Ga3+, Ti4+, Sn4+, and Mg2+ was studied in insulating charge ordered manganite Pr0.6Ca0.4MnO3 that exhibits a canted CE-type magnetic structure. Whatever M, the charge ordering disappears for low x levels (x greater than or equal to 0.02) in doped manganite Pr0.6Ca0.4Mn1-xMxO3. But the most important feature deals with the fact that a transition to a ferromagnetic metallic state is induced for M=Fe3+, Al3+, Ga3+, and Mg2+ in spite of the small size of the interpolated cation (Pr,Ca). In contrast, doping with a tetravalent cation does not drastically modify the magnetic and transport properties of the phase. (C) 1997 American Institute of Physics.

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页码：1485 / 1487

页数：3

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