DOI: 10.1002/adfm.201700367. Ultrafast Switching in Avalanche‐Driven Ferroelectrics by Supersonic Kink Movements

Ultrafast Switching in Avalanche‐Driven Ferroelectrics by Supersonic Kink Movements

10.1002/adfm.201700367

Crossref journal-article

Wiley

Advanced Functional Materials (311)

Abstract

Devices operating at GHz frequencies can be based on ferroelectric kink‐domains moving at supersonic speed. The kinks are located inside ferroelastic twin boundaries and are extremely mobile. Computer simulation shows that strong forcing generates velocities well above the speed of sound. Kinks are accelerated from v = 0 continuously with Döring masses in the order of skyrmion masses under constant strain rates. Moving kinks emit phonons at all velocities, and the emission cones coincide with the Mach cones at supersonic speed. Kinks form avalanches with the emission of secondary kinks via a mother–daughter nucleation mechanism and may be observable in acoustic emission experiments. Supersonic kinks define a new type of material; while mobile domains are the key for ferroelastic and ferroelectric device applications at low frequencies, it is expected that fast kink movements replace such domain movements for materials applications at high frequencies.

Bibliography

Salje, E. K. H., Wang, X., Ding, X., & Scott, J. F. (2017). Ultrafast Switching in AvalancheâDriven Ferroelectrics by Supersonic Kink Movements. Advanced Functional Materials, 27(21). Portico.

Authors 4

Ekhard K. H. Salje (first)
Xiaofei Wang (additional)
Xiangdong Ding (additional)
James F. Scott (additional)

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Dates

Type	When
Created	8 years, 4 months ago (April 5, 2017, 7:39 a.m.)
Deposited	1 year, 10 months ago (Oct. 5, 2023, 7:36 p.m.)
Indexed	3 weeks ago (July 30, 2025, 3:33 a.m.)
Issued	8 years, 4 months ago (April 3, 2017)
Published	8 years, 4 months ago (April 3, 2017)
Published Online	8 years, 4 months ago (April 3, 2017)
Published Print	8 years, 2 months ago (June 1, 2017)

Funders 3

National Natural Science Foundation of China 10.13039/501100001809
Region: Asia
gov (National government)
Labels11
1. Chinese National Science Foundation
2. Natural Science Foundation of China
3. National Science Foundation of China
4. NNSF of China
5. NSF of China
6. 国家自然科学基金委员会
7. National Nature Science Foundation of China
8. Guójiā Zìrán Kēxué Jījīn Wěiyuánhuì
9. NSFC
10. NNSF
11. NNSFC
Awards3
1. 51231008
2. 51320105014
3. 51621063
Engineering and Physical Sciences Research Council 10.13039/501100000266
Region: Europe
gov (National government)
Labels4
1. UKRI Engineering and Physical Sciences Research Council
2. Engineering and Physical Sciences Research Council - UKRI
3. Engineering & Physical Sciences Research Council
4. EPSRC
Awards1
1. EP/K009702/1
Leverhulme Trust 10.13039/501100000275
Awards1
1. RPG‐2012‐564

BibTeX

@article{Salje_2017, title={Ultrafast Switching in Avalanche‐Driven Ferroelectrics by Supersonic Kink Movements}, volume={27}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.201700367}, DOI={10.1002/adfm.201700367}, number={21}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Salje, Ekhard K. H. and Wang, Xiaofei and Ding, Xiangdong and Scott, James F.}, year={2017}, month=apr }

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