Colossal magnetoresistance and Mossbauer studies of the manganites La1-xSnxMn0.985Fe0.015O3+δ

被引：17

作者：

Li, ZW ^{[1
]}

Morrish, AH

Zhou, XZ

Dai, S

机构：

[1] Univ Manitoba, Dept Phys, Winnipeg, MB R3T 2N2, Canada

[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

JOURNAL OF APPLIED PHYSICS | 1998年 / 83卷 / 11期

关键词：

D O I：

10.1063/1.367631

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Colosssal magnetoresistance (CMR), Mossbauer spectra, and phase compositions of the iron-doped manganites, La1-xSnxMn0.985Fe0.015O3 + delta (x = 0.3 and 0.5), have been studied. A small amount of iron doping modifies the CMR and other magnetic properties of the manganites. La0.7Sn0.3Mn0.985Fe0.15O3 + delta exhibits CMR; the magnetoresistance coefficient with H = 20 kOe and T = 225 K is about 80%. La0.7Sn0.3Mn0.985Fe0.015O3 + delta consists of two phases, (LaSn2+)MnO3, or ABO(3), and (LaSn4+)(2)Mn2O7, or A(2)B(2)O(7). The ABO(3) phase has a transition from paramagnetism to ferromagnetism at T = 225 K. The CMR has its origin in the ABO(3) phase. (C) 1998 American Institute of Physics.

引用

页码：7198 / 7200

页数：3

共 7 条

[1] A systematic study of structural, magnetic and electrical properties of (La1-xTbx)(2/3)Ca1/3MnO3 perovskites [J].