Ferroelectricity and Self-Polarization in Ultrathin Relaxor Ferroelectric Films

被引：42

作者：

Miao, Peixian ^{[1
,2
,3
]}

Zhao, Yonggang ^{[1
,2
,3
]}

Luo, Nengneng ^{[4
]}

Zhao, Diyang ^{[1
,2
,3
]}

Chen, Aitian ^{[1
,2
,3
]}

Sun, Zhong ^{[1
,2
,3
]}

Guo, Meiqi ^{[1
,2
,3
]}

Zhu, Meihong ^{[1
,2
,3
]}

Zhang, Huiyun ^{[1
,2
,3
]}

Li, Qiang ^{[4
]}

机构：

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

[2] Tsinghua Univ, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China

[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China

[4] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

SCIENTIFIC REPORTS | 2016年 / 6卷

基金：

美国国家科学基金会;

关键词：

PIEZOELECTRIC BEHAVIOR; FIELD;

D O I：

10.1038/srep19965

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We report ferroelectricity and self-polarization in the (001) oriented ultrathin relaxor ferroelectric PMN-PT films grown on Nb-SrTiO3, SrRuO3 and La0.7Sr0.3MnO3, respectively. Resistance-voltage measurements and AC impedance analysis suggest that at high temperatures Schottky depletion width in a 4 nm thick PMN-PT film deposited on Nb-SrTiO3 is smaller than the film thickness. We propose that Schottky interfacial dipoles make the dipoles of the nanometer-sized polar nanoregions (PNRs) in PMN-PT films grown on Nb-SrTiO3 point downward at high temperatures and lead to the self-polarization at room temperature with the assistance of in-plane compressive strain. This work sheds light on the understanding of epitaxial strain effects on relaxor ferroelectric films and self-polarization mechanism.

引用

页数：9

共 41 条

[1] Soft Mode Doublet in PbMg1/3Nb2/3O3 Relaxor Investigated with Hyper-Raman Scattering [J].

Al-Zein, A. ;

Hlinka, J. ;

Rouquette, J. ;

Hehlen, B. .

PHYSICAL REVIEW LETTERS, 2010, 105 (01)

[2] Giant Piezoelectricity on Si for Hyperactive MEMS [J].

Baek, S. H. ;

Park, J. ;

Kim, D. M. ;

Aksyuk, V. A. ;

Das, R. R. ;

Bu, S. D. ;

Felker, D. A. ;

Lettieri, J. ;

Vaithyanathan, V. ;

Bharadwaja, S. S. N. ;

Bassiri-Gharb, N. ;

Chen, Y. B. ;

Sun, H. P. ;

Folkman, C. M. ;

Jang, H. W. ;

Kreft, D. J. ;

Streiffer, S. K. ;

Ramesh, R. ;

Pan, X. Q. ;

Trolier-McKinstry, S. ;

Schlom, D. G. ;

Rzchowski, M. S. ;

Blick, R. H. ;

Eom, C. B. .

SCIENCE, 2011, 334 (6058) :958-961

[3] Electromechanical Imaging and Spectroscopy of Ferroelectric and Piezoelectric Materials: State of the Art and Prospects for the Future [J].

Balke, Nina ;

Bdikin, Igor ;

Kalinin, Sergei V. ;

Kholkin, Andrei L. .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (08) :1629-1647

[4] Local polarization distribution and Edwards-Anderson order parameter of relaxor ferroelectrics [J].

Blinc, R ;

Dolinsek, J ;

Gregorovic, A ;

Zalar, B ;

Filipic, C ;

Kutnjak, Z ;

Levstik, A ;

Pirc, R .

PHYSICAL REVIEW LETTERS, 1999, 83 (02) :424-427

[5] Recent progress in relaxor ferroelectrics with perovskite structure [J].

Bokov, AA ;

Ye, ZG .

JOURNAL OF MATERIALS SCIENCE, 2006, 41 (01) :31-52

[6] CRYSTALLINE FERROELECTRICS WITH GLASSY POLARIZATION BEHAVIOR [J].

BURNS, G ;

DACOL, FH .

PHYSICAL REVIEW B, 1983, 28 (05) :2527-2530

[7] Interface control of surface photochemical reactivity in ultrathin epitaxial ferroelectric films [J].

Chen, Jason ;

Lu, Haidong ;

Liu, Heng-Jui ;

Chu, Ying-Hao ;

Dunn, Steve ;

Ostrikov, Kostya ;

Gruverman, Alexei ;

Valanoor, Nagarajan .

APPLIED PHYSICS LETTERS, 2013, 102 (18)

[8] Upward ferroelectric self-polarization induced by compressive epitaxial strain in (001) BaTiO3 films [J].

Chen, Jiangpeng ;

Luo, Ying ;

Ou, Xin ;

Yuan, Guoliang ;

Wang, Yiping ;

Yang, Ying ;

Yin, Jiang ;

Liu, Zhiguo .

JOURNAL OF APPLIED PHYSICS, 2013, 113 (20)

[9] Enhancement of ferroelectricity in strained BaTiO3 thin films [J].

Choi, KJ ;

Biegalski, M ;

Li, YL ;

Sharan, A ;

Schubert, J ;

Uecker, R ;

Reiche, P ;

Chen, YB ;

Pan, XQ ;

Gopalan, V ;

Chen, LQ ;

Schlom, DG ;

Eom, CB .

SCIENCE, 2004, 306 (5698) :1005-1009

[10] Stabilization of monodomain polarization in ultrathin PbTiO3 films [J].

Fong, DD ;

Kolpak, AM ;

Eastman, JA ;

Streiffer, SK ;

Fuoss, PH ;

Stephenson, GB ;

Thompson, C ;

Kim, DM ;

Choi, KJ ;

Eom, CB ;

Grinberg, I ;

Rappe, AM .

PHYSICAL REVIEW LETTERS, 2006, 96 (12)

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