SPECTACULAR GIANT MAGNETORESISTANCE EFFECTS IN THE POLYCRYSTALLINE PEROVSKITE PR(0.7)SR(0.05)CA(0.25)MNO3-DELTA

被引：208

作者：

RAVEAU, B ^{[1
]}

MAIGNAN, A ^{[1
]}

CAIGNAERT, V ^{[1
]}

机构：

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

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1995年 / 117卷 / 02期

关键词：

D O I：

10.1006/jssc.1995.1297

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A polycrystalline manganite with spectacular magnetoresistive properties, Pr0.7Sr0.05Ca0.25MnO3-delta has been synthesized. This perovskite-type phase exhibits a resistance variation up to 2.5 x 10(7)% at 85 K with mu(0)H = 5 T, i.e., one order of magnitude larger than has been observed on the best manganite thin films to date. The size of the interpolated cations, in addition to the mixed valence Mn(III)-Mn(IV), is a crucial parameter for the GMR effect. A route to the utilization of manganite perovskites for device applications is thereby opened. (C) 1995 Academic Press, Inc.

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页码：424 / 426

页数：3

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