Novel Multifunctional Properties Induced by Interface Effects in Perovskite Oxide Heterostructures

被引：77

作者：

Jin, Kui-juan ^{[1
]}

Lu, Hui-bin ^{[1
]}

Zhao, Kun ^{[1
]}

Ge, Chen ^{[1
]}

He, Meng ^{[1
]}

Yang, Guo-zhen ^{[1
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China

来源：

ADVANCED MATERIALS | 2009年 / 21卷 / 45期

关键词：

MOLECULAR-BEAM EPITAXY; POSITIVE MAGNETORESISTANCE; ELECTRON; TEMPERATURE; MOBILITY;

D O I：

10.1002/adma.200901046

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Multilayer structures have emerged as a leading research topic and researchers expect that multilayers may lead to interesting artificial materials with novel properties. In this Research News we show that the introduction of interfaces into perovskite oxides can induce a series of novel properties including an unusual positive magnetoresistance, great enhancement of lateral photovoltage in La0.9Sr0.1MnO3/SrNb0.01Ti0.99O3, and an electrical modulation of the magnetoresistance in multi-p-n heterostructures of SrTiO3/La0.9Sr0.1MnO3/SrTiO3/La0.9Sr0.1MnO3/Si. This novel positive magnetoresistance is attributW to the creation of a space charge region at the interface where the spin of No carriers is anti-parallel to that of the carriers in the region far from the interface of manganese oxide in the heterostructures.

引用

页码：4636 / 4640

页数：5

共 33 条

[1]

AMARI S, 1991, J PHYS III, V1, P1669, DOI 10.1051/jp3:1991220

[2]

[Anonymous], 2007, SCIENCE, V318, P1844

[3] Current switching of resistive states in magnetoresistive manganites [J].