Electric-field control of phase separation and memory effect in Pr0.6Ca0.4MnO3/Pb(Mg1/3Nb2/3)0.7Ti0.3O3 heterostructures

被引：43

作者：

Chen, Q. P. ^{[1
,2
]}

Yang, J. J. ^{[1
,2
]}

Zhao, Y. G. ^{[1
,2
]}

Zhang, S. ^{[1
,2
]}

Wang, J. W. ^{[1
,2
]}

Zhu, M. H. ^{[1
,2
]}

Yu, Y. ^{[3
]}

Zhang, X. Z. ^{[3
]}

Wang, Zhu ^{[4
]}

Yang, Bin ^{[4
]}

Xie, D. ^{[5
,6
]}

Ren, T. L. ^{[5
,6
]}

机构：

[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Minist Educ, Key Lab Atom & Nanosci, Beijing 100084, Peoples R China

[3] Tsinghua Univ, Beijing Natl Ctr Elect Microscopy, Adv Mat Lab, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

[4] Harbin Inst Technol, Dept Phys, Harbin 150080, Peoples R China

[5] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China

[6] Tsinghua Univ, Tsinghua Natl Lab Informat Sci & Technol TNList, Beijing 100084, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 17期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.3584025

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Heterostructures were fabricated by growing Pr0.6Ca0.4MnO3 (PCMO) films on Pb(Mg1/3Nb2/3)(0.7)Ti0.3O3 substrates. It was shown that the magnetizations of the samples can be tuned dramatically by electric fields via piezostrain and the effect is dominated by the change in phase separation. More interestingly, the electric-field control of magnetization is nonvolatile, manifesting a memory effect of strain. The results were discussed by considering the effect of electric-field-induced strain on the energy landscape of PCMO and the resultant change in phase separation. This work is helpful for exploring the evolution of phase separation with well-controlled strains and the magnetoelectric coupling effect. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3584025]

引用

页数：3

共 20 条

[1] Strain-induced metal-insulator phase coexistence in perovskite manganites [J].