Origin of the light-induced spin currents in heavy metal/magnetic insulator bilayers

Hongru Wang, Jing Meng, Jianjun Lin, Bin Xu, Hai Ma, Yucheng Kan, Rui Chen, Lujun Huang, Ye Chen, Fangyu Yue, Chun-Gang Duan, Junhao Chu and Lin Sun ()
Additional contact information
Hongru Wang: East China Normal University
Jing Meng: East China Normal University
Jianjun Lin: East China Normal University
Bin Xu: East China Normal University
Hai Ma: East China Normal University
Yucheng Kan: East China Normal University
Rui Chen: East China Normal University
Lujun Huang: East China Normal University
Ye Chen: East China Normal University
Fangyu Yue: East China Normal University
Chun-Gang Duan: East China Normal University
Junhao Chu: East China Normal University
Lin Sun: East China Normal University

Nature Communications, 2024, vol. 15, issue 1, 1-8

Abstract: Abstract Light-induced spin currents with the faster response is essential for the more efficient information transmission and processing. Herein, we systematically explore the effect of light illumination energy and direction on the light-induced spin currents in the W/Y3Fe5O12 heterojunction. Light-induced spin currents can be clearly categorized into two types. One is excited by the low light intensity, which mainly involves the photo-generated spin current from spin photovoltaic effect. The other is caused by the high light intensity, which is the light-thermally induced spin current and mainly excited by spin Seebeck effect. Under low light-intensity illumination, light-thermally induced temperature gradient is very small so that spin Seebeck effect can be neglected. Furthermore, the mechanism on spin photovoltaic effect is fully elucidated, where the photo-generated spin current in Y3Fe5O12 mainly originates from the process of spin precession induced by photons. These findings provide some deep insights into the origin of light-induced spin current.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-48710-6 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-48710-6

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-024-48710-6

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().