Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/24670
Title: 
Authors: 
Issue Date: 
2022
Citation: 
Avinash Chaurasiya, Li, Z., Rohit Medwal, Surbhi Gupta, Mohan, J. R., Fukuma, Y., Asada, H., Chia, E. E. M., & Rawat, R. S. (2022). Piezoelectric strain control of terahertz spin current. Advanced Optical Materials. Advance online publication. https://doi.org/10.1002/adom.202201929
Journal: 
Advanced Optical Materials
Abstract: 
Electrical control of photogenerated terahertz (THz) spin current pulses from a spintronic emitter has been at the forefront for the development of scalable, cost-efficient, wideband optospintronic devices. Artificially combined ferroelectric and ferromagnet heterostructure provides the potential avenue to deterministically control the phase of THz spin current pulse through piezoelectric strain. Here, the electric field-mediated piezoelectric strain control of photogenerated THz spin current pulse from a multiferroic spintronic emitter is demonstrated. The phase reversal of the THz spin current pulse is obtained from the combined effect of piezoelectric strain and a small magnetic field applied opposite to the initial magnetization of the ferromagnet. The piezoelectric strain-controlled phase switching of THz spin current thus opens a door to develop efficient strain engineered scalable on-chip THz spintronics devices.
URI: 
ISSN: 
2195-1071
DOI: 
Project number: 
ARC 1/19 RSR
CRP21-2018-0003
Grant ID: 
MOE2018-T3-1-002
NRF-CRP22-2019-0004
KAKENHI Nos. 18H01862a and 19K21112
Funding Agency: 
Ministry of Education, Singapore
National Research Foundation, Singapore
JSPS Grant-in-Aid
File Permission: 
None
File Availability: 
No file
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