Strong isotope effect in Sm1-xSrxMnO3 manganites near x=0.5

被引：1

作者：

Babushkina, NA

Chistotina, EA

Gorbenko, OY

Kaul, AR

Khomskii, DI

Kugel, KI

机构：

[1] IV Kurchatov Atom Energy Inst, Russian Res Ctr, Moscow 123182, Russia

[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia

[3] Univ Groningen, Solid State Phys Lab, NL-9747 AG Groningen, Netherlands

[4] Russian Acad Sci, Inst Theoret & Appl Electrodynam, Moscow 125412, Russia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

manganite; isotope effect; electrical resistivity; magnetic susceptibility;

D O I：

10.1016/j.jmmm.2003.11.121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of O-16 --> O-18 isotope substitution on electrical resistivity and magnetic susceptibility of Sm1-xSrxMnO3 manganites is analyzed. It is shown that the oxygen isotope substitution drastically affects the phase diagram at the crossover region between the ferromagnetic metal state and that of antiferromagnetic insulator (0.4 < x <0.6), and induces the metal-insulator transition at x = 0.475 and 0.5. The nature of antiferromagnetic insulator phase is discussed. (C) 2003 Elsevier B.V. All rights reserved.

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收藏

页码：407 / 409

页数：3

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