Electric-field-induced insulator-metal transitions in thin films of charge-ordered rare-earth manganates

被引：64

作者：

Ponnambalam, V ^{[1
]}

Parashar, S ^{[1
]}

Raju, AR ^{[1
]}

Rao, CNR ^{[1
]}

机构：

[1] Indian Inst Sci, Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India

来源：

APPLIED PHYSICS LETTERS | 1999年 / 74卷 / 02期

关键词：

D O I：

10.1063/1.123294

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Thin films of charge-ordered Nd0.5Ca0.5MnO3, Y0.5Ca0.5MnO3, and Nd0.5Sr0.5MnO3 have been prepared on Si(100) and LaAlO3(100) substrates by the nebulized spray pyrolysis of organometallic precursors. Small electric fields induce insulator-metal transitions in the films with the resistivity decreasing with increasing current. The current-voltage characteristics are non-ohmic and show some hysteresis. The current-induced negative differential resistance found in these manganate films could have potential technological applications. (C) 1999 American Institute of Physics. [S0003-6951(99)01402-3].

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页码：206 / 208

页数：3

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