journal article·2015-12-02

Periodicity Dependence of the Built-in Electric Field in (Ba0.7Ca0.3)TiO3/Ba(Zr0.2Ti0.8)O3 Ferroelectric Superlattices

Qianru Lin, Danyang Wang, Zhigang Chen, Wenfeng Liu, Sean Lim, Sean Li

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Abstract

Symmetric ferroelectric superlattices consisting of (Ba0.7Ca0.3)TiO3 (BCT) and Ba(Zr0.2Ti0.8)O3 (BZT) layers were successfully grown on La0.7Sr0.3MnO3 electroded (001)-oriented SrTiO3 substrates by laser molecular beam epitaxy. With the monitor of reflective high-energy electron diffraction, the growth mode and rate were precisely controlled to realize the desired superlattice periodicity as confirmed by both X-ray diffraction and transmission electron microscopy results. The microscopic piezoelectric response and macroscopic ferroelectric properties were investigated as a function of periodicity of the BCTm/BZTm (m = 3, 5, 10, and 15 unit cells) superlattices. The existence of a built-in electric field was confirmed in all the superlattices and its strength was highly dependent on the periodicity. The excellent tunability of built-in electric field opens a path for designing microelectronic devices with various functionalities based on BCTm/BZTm superlattices.
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Research context

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Magnetic and transport properties of perovskites and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, The University of New South Wales, Sydney, New South Wales 2052, Australia

Materials Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia

State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China

Electron Microscopy Unit, University of New South Wales, Sydney, New South Wales 2052, Australia

Funding

China Scholarship Council · State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University · Australian Research Council

References (42)

Show source-provided references
1. 10.1063/1.491975510.1063/1.4919755 ↗
2. 10.1002/lpor.20110002910.1002/lpor.201100029 ↗
3. 10.1021/cm503157410.1021/cm5031574 ↗
4. 10.1063/1.344340410.1063/1.3443404 ↗
5. 10.1063/1.129069110.1063/1.1290691 ↗
6. 10.1103/PhysRevB.55.1121810.1103/PhysRevB.55.11218 ↗
7. 10.1038/srep0273710.1038/srep02737 ↗
8. 10.1063/1.347382110.1063/1.3473821 ↗
9. 10.1063/1.315351210.1063/1.3153512 ↗
10. 10.1063/1.300350710.1063/1.3003507 ↗
11. 10.1038/nature0681710.1038/nature06817 ↗
12. 10.1063/1.281793310.1063/1.2817933 ↗
13. 10.1063/1.243376610.1063/1.2433766 ↗
14. 10.1038/nature0326110.1038/nature03261 ↗
15. 10.1063/1.357349910.1063/1.3573499 ↗
16. 10.1103/PhysRevB.81.15530110.1103/PhysRevB.81.155301 ↗
17. 10.1063/1.164725810.1063/1.1647258 ↗
18. 10.1063/1.145625610.1063/1.1456256 ↗
19. 10.1063/1.155656510.1063/1.1556565 ↗
20. 10.1063/1.275435810.1063/1.2754358 ↗
21. 10.1063/1.136664410.1063/1.1366644 ↗
22. 10.1103/PhysRevLett.103.25760210.1103/PhysRevLett.103.257602 ↗
23. 10.1063/1.487167310.1063/1.4871673 ↗
24. 10.1016/j.tsf.2015.04.05010.1016/j.tsf.2015.04.050 ↗
25. 10.1063/1.486701310.1063/1.4867013 ↗
26. 10.1143/JJAP.40.530210.1143/JJAP.40.5302 ↗
27. 10.1063/1.476732910.1063/1.4767329 ↗
28. 10.1103/PhysRevB.80.02410510.1103/PhysRevB.80.024105 ↗
29. 10.1063/1.365138310.1063/1.3651383 ↗
30. 10.1126/science.108061510.1126/science.1080615 ↗
31. 10.1088/0022-3727/43/2/02540510.1088/0022-3727/43/2/025405 ↗
32. 10.1021/nl102959k10.1021/nl102959k ↗
33. 10.1039/C4RA08280J10.1039/C4RA08280J ↗
34. 10.1063/1.357205610.1063/1.3572056 ↗
35. 10.1021/nn102884s10.1021/nn102884s ↗
36. 10.1063/1.137805510.1063/1.1378055 ↗
37. 10.1063/1.134204510.1063/1.1342045 ↗
38. 10.1063/1.164725810.1063/1.1647258 ↗
39. 10.1063/1.203999010.1063/1.2039990 ↗
40. 10.1063/1.275435810.1063/1.2754358 ↗
41. 10.1063/1.132877610.1063/1.1328776 ↗
42. 10.1063/1.347382110.1063/1.3473821 ↗