Observation of Phase Transitions of Ba_{0.6}Sr_{0.4}TiO₃–Silicon Hybrid Metamaterial by THz Spectra

Liang Wu; Yi Fu; Ningning Xu; Quan Sheng; Xi Zhang; Yanlong Yang; Jianquan Yao; Degang Xu; Xin Ding; Jining Li; Zhiyong Wang; Weili Zhang

doi:10.1021/acsaelm.0c00390

journal article·2020-08-25

Observation of Phase Transitions of Ba_0.6Sr_0.4TiO₃–Silicon Hybrid Metamaterial by THz Spectra

Liang Wu, Yi Fu, Ningning Xu, Quan Sheng, Xi Zhang, Yanlong Yang, Jianquan Yao, Degang Xu, Xin Ding, Jining Li, Zhiyong Wang, Weili Zhang

ACS Applied Electronic Materials· Volume 2· Issue 8

Publisher page

Source abstract

Abstract

The ferroelectric thin film such as BaSrTiO3 (BST), exhibiting great tunable characteristics, is a hot spot in photonic devices for both microwave and terahertz frequencies. This report presents a cryogenic temperature measurement of a Ba0.6Sr0.4TiO3–silicon hybrid metamaterial by terahertz time-domain spectroscopy. Three phase transitions of the BST thin film are observed in the THz spectra, including cubic-tetragonal (C–T), tetragonal-orthorhombic (T–O), and orthorhombic-rhombohedral (O–R). We also investigated the modulation of its dielectric properties in different temperature conditions, which delivers a transmittance contrast up to ∼45.8%. These findings provide a reference to the ferroelectric basic research and can be generalized for use in ferroelectric thin-film-based temperature sensors.

Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Acoustic Wave Resonator Technologies · Photonic and Optical Devices · Photonic Crystals and Applications

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

Affiliations

School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, China

Key Laboratory of Optoelectronics Information and Technology (Ministry of Education), Tianjin 300072, China

School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States

Mechanics Department, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China

References (26)

Show source-provided references

1. 10.1063/1.173613210.1063/1.1736132 ↗

2. 10.1038/nature0201810.1038/nature02018 ↗

3. 10.1088/0953-2048/11/11/02110.1088/0953-2048/11/11/021 ↗

4. 10.1002/adma.20180815710.1002/adma.201808157 ↗

5. 10.1063/1.477166910.1063/1.4771669 ↗

6. 10.1063/1.218337010.1063/1.2183370 ↗

7. 10.1063/1.282240910.1063/1.2822409 ↗

8. 10.1063/1.492740410.1063/1.4927404 ↗

9. 10.1080/0015019039021197210.1080/00150190390211972 ↗

10. 10.1063/1.11283510.1063/1.112835 ↗

11. 10.1088/2040-8978/16/10/10570310.1088/2040-8978/16/10/105703 ↗

12. 10.1063/1.486366910.1063/1.4863669 ↗

13. 10.1103/PhysRevSTAB.13.11350110.1103/PhysRevSTAB.13.113501 ↗

14. 10.1103/PhysRevLett.106.16480210.1103/PhysRevLett.106.164802 ↗

15. 10.1038/s41567-018-0408-110.1038/s41567-018-0408-1 ↗

16. 10.1364/OE.24.02661810.1364/OE.24.026618 ↗

17. 10.1002/smll.20167009810.1002/smll.201670098 ↗

18. 10.1063/1.493425610.1063/1.4934256 ↗

19. 10.1364/OL.35.00358610.1364/OL.35.003586 ↗

20. 10.1364/OL.36.00123010.1364/OL.36.001230 ↗

21. 10.1038/nnano.2012.5910.1038/nnano.2012.59 ↗

22. 10.1002/adma.20180125710.1002/adma.201801257 ↗

23. Jaffe B. · 1971

24. Jona F. · 1962

25. 10.1016/j.apsusc.2006.06.01110.1016/j.apsusc.2006.06.011 ↗

26. 10.1111/j.1151-2916.1959.tb12954.x10.1111/j.1151-2916.1959.tb12954.x ↗