Epitaxial growth and polarization reversal characteristics of hybrid improper ferroelectric Ca3Ti2O7 thin films

被引：1

作者：

Ma, X. T. ^{[1
]}

Wang, S. Y. ^{[1
]}

Chen, Chang ^{[1
]}

Jia, Y. D. ^{[1
]}

Liu, W. F. ^{[2
]}

机构：

[1] Tianjin Normal Univ, Coll Phys & Mat Sci, Tianjin 300387, Peoples R China

[2] Tianjin Univ, Sch Sci, Tianjin Key Lab Low Dimens Mat Phys & Preparing T, Tianjin 300072, Peoples R China

来源：

AIP ADVANCES | 2021年 / 11卷 / 12期

基金：

中国国家自然科学基金;

关键词：

STRAIN;

D O I：

10.1063/5.0070911

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Layered perovskite oxides A(3)B(2)O(7) with Ruddlesden-Popper structures have attracted great attention due to their intriguing hybrid improper ferroelectricity. In this work, we prepared high-quality epitaxial Ca3Ti2O7 (CTO) thin films on Nb-SrTiO3 (STO) and Pt-Si substrates by pulsed laser deposition. The epitaxial relationship between the CTO thin film and Nb-STO substrate is [010]CTO//[010]Nb-STO, while the CTO film on Pt-Si is the polycrystalline growth with the preferred orientation of (010). The piezoelectric force microscopy image is attested to the stable existence of ferroelectricity in CTO films at room temperature with different growth patterns. A resistive switching behavior with at least two orders of magnitude is observed in CTO films driven by their ferroelectric polarization reversal. Moreover, a downward self-poling phenomenon is observed in CTO films on different substrates, and the flexoelectric effect induced by the strain gradient is supposed to be the main origin.(c) 2021 Author(s).

引用

页数：8

共 25 条

[1] Hybrid Improper Ferroelectricity: A Mechanism for Controllable Polarization-Magnetization Coupling [J].

Benedek, Nicole A. ;

Fennie, Craig J. .

PHYSICAL REVIEW LETTERS, 2011, 106 (10)

[2] Improper ferroelectricity in perovskite oxide artificial superlattices [J].

Bousquet, Eric ;

Dawber, Matthew ;

Stucki, Nicolas ;

Lichtensteiger, Celine ;

Hermet, Patrick ;

Gariglio, Stefano ;

Triscone, Jean-Marc ;

Ghosez, Philippe .

NATURE, 2008, 452 (7188) :732-U4

[3] Direct-Write Piezoelectric Polymeric Nanogenerator with High Energy Conversion Efficiency [J].

Chang, Chieh ;

Tran, Van H. ;

Wang, Junbo ;

Fuh, Yiin-Kuen ;

Lin, Liwei .

NANO LETTERS, 2010, 10 (02) :726-731

[4] 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)

[5] STRUCTURE DETERMINATIONS FOR CA3TI2O7, CA4TI3O10, CA3.6SR0.4TI3O10 AND A REFINEMENT OF SR3TI2O7 [J].

ELCOMBE, MM ;

KISI, EH ;

HAWKINS, KD ;

WHITE, TJ ;

GOODMAN, P ;

MATHESON, S .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1991, 47 :305-314

[6] Topological defects at octahedral tilting plethora in bi-layered perovskites [J].

Huang, Fei-Ting ;

Gao, Bin ;

Kim, Jae-Wook ;

Luo, Xuan ;

Wang, Yazhong ;

Chu, Ming-Wen ;

Chang, Chung-Kai ;

Sheu, Hwo-Shuenn ;

Cheong, Sang-Wook .

NPJ QUANTUM MATERIALS, 2016, 1

[7] Flexoelectric Effect in the Reversal of Self-Polarization and Associated Changes in the Electronic Functional Properties of BiFeO3 Thin Films [J].

Jeon, Byung Chul ;

Lee, Daesu ;

Lee, Myang Hwan ;

Yang, Sang Mo ;

Chae, Seung Chul ;

Song, Tae Kwon ;

Bu, Sang Don ;

Chung, Jin-Seok ;

Yoon, Jong-Gul ;

Noh, Tae Won .

ADVANCED MATERIALS, 2013, 25 (39) :5643-+

[8] A Resistive Memory in Semiconducting BiFeO3 Thin-Film Capacitors [J].

Jiang, An Quan ;

Wang, Can ;

Jin, Kui Juan ;

Liu, Xiao Bing ;

Scott, James F. ;

Hwang, Cheol Seong ;

Tang, Ting Ao ;

Bin Lu, Hui ;

Yang, Guo Zhen .

ADVANCED MATERIALS, 2011, 23 (10) :1277-+

[9] Exploiting dimensionality and defect mitigation to create tunable microwave dielectrics [J].

Lee, Che-Hui ;

Orloff, Nathan D. ;

Birol, Turan ;

Zhu, Ye ;

Goian, Veronica ;

Rocas, Eduard ;

Haislmaier, Ryan ;

Vlahos, Eftihia ;

Mundy, Julia A. ;

Kourkoutis, Lena F. ;

Nie, Yuefeng ;

Biegalski, Michael D. ;

Zhang, Jingshu ;

Bernhagen, Margitta ;

Benedek, Nicole A. ;

Kim, Yongsam ;

Brock, Joel D. ;

Uecker, Reinhard ;

Xi, X. X. ;

Gopalan, Venkatraman ;

Nuzhnyy, Dmitry ;

Kamba, Stanislav ;

Muller, David A. ;

Takeuchi, Ichiro ;

Booth, James C. ;

Fennie, Craig J. ;

Schlom, Darrell G. .

NATURE, 2013, 502 (7472) :532-+

[10] Giant Flexoelectric Effect in Ferroelectric Epitaxial Thin Films [J].

Lee, D. ;

Yoon, A. ;

Jang, S. Y. ;

Yoon, J. -G. ;

Chung, J. -S. ;

Kim, M. ;

Scott, J. F. ;

Noh, T. W. .

PHYSICAL REVIEW LETTERS, 2011, 107 (05)

← 1 2 3 →