The study on the electric field effect in the La0.8Ca0.2MnO3/PbZr0.2Ti0.8O3/si heterostructure

被引：0

作者：

Wei, Zhang Wei ^{[1
]}

Feng, Wang Li ^{[1
]}

Qing, Zhou Yu ^{[1
]}

Ming, Zhu ^{[1
]}

机构：

[1] Southeast Univ, Dept Phys, Nanjing 211189, Peoples R China

来源：

SURFACE REVIEW AND LETTERS | 2007年 / 14卷 / 04期

关键词：

heterostructure; electric field effect; mobility; carrier concentration;

D O I：

10.1142/S0218625X07009785

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A detailed quantitative investigation of the current-voltage (I-V) relationship under the low and the high electric field in the La0.8Ca0.2MnO3/PbZr0.2Ti0.8O3/Si heterostructure over a wide range of temperature was performed. The effective mobility and carrier concentration were then calculated through the electric field effect theory. The differential mobility can be modulated and enhanced significantly by the gate voltage in the vicinity of the metal-insulator-transition temperature. The carrier concentration is proportional to the applied gate voltage. At the room temperature the carrier concentration is found to be 2.5 x 10(-9) under 10V bias and remains almost unchanged at different temperatures.

引用

页码：617 / 621

页数：5

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