Mechanism of electric-pulse-induced resistance switching in manganites

被引：117

作者：

Quintero, M.

Levy, P.

Leyva, A. G.

Rozenberg, M. J.

机构：

[1] CAC, CNEA, Dept Fis, RA-1650 Buenos Aires, DF, Argentina

[2] UNSAM, Escuela Ciencia & Tecnol, RA-1650 Buenos Aires, DF, Argentina

[3] Univ Paris 11, Lab Phys Solides, CNRS UMR 8502, F-91405 Orsay, France

[4] Univ Buenos Aires, Dept Fis, FCEN, RA-1428 Buenos Aires, DF, Argentina

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.98.116601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the electric-pulse-induced resistance switching in manganite systems. We find a "complementarity" effect where the contact resistance of electrodes at opposite ends show variations of opposite sign and is reversible. The temperature dependence of the magnitude of the effect reveals a dramatic enhancement at a temperature T-*, below the metal-insulator transition. We qualitatively capture these features with a theoretical model, providing evidence for the physical mechanism of the resistance switching. We argue that doping control of the electronic state of the oxide at the interfaces is the mechanism driving the effect.

引用

页数：4

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