Light-induced ultrafast spin transport in multilayer metallic films originates from sp-d spin exchange coupling

1Citations
Citations of this article
15Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Ultrafast interaction between the femtosecond laser pulse and the magnetic metal provides an efficient way to manipulate the magnetic states of matter. Numerous experimental advancements have been made on multilayer metallic films in the last two decades. However, the underlying physics remains unclear. Here, relying on an efficient ab initio spin dynamics simulation algorithm, we revealed the physics that can unify the progress in different experiments. We found that light-induced ultrafast spin transport in multilayer metallic films originates from the sp-d spin-exchange interaction, which can induce an ultrafast, large, and pure spin current from ferromagnetic metal to nonmagnetic metal without charge carrier transport. The resulting trends of spin demagnetization and spin flow are consistent with most experiments. It can explain a variety of ultrafast light-spin manipulation experiments with different systems and different pump-probe technologies, covering a wide range of work in this field.

References Powered by Scopus

Optical constants of the noble metals

18230Citations
N/AReaders
Get full text

Indirect exchange coupling of nuclear magnetic moments by conduction electrons

2947Citations
N/AReaders
Get full text

Magnetic properties of Cu-Mn alloys

2428Citations
N/AReaders
Get full text

Cited by Powered by Scopus

Efficient Orbitronic Terahertz Emission Based on CoPt Alloy

2Citations
N/AReaders
Get full text

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

Chen, Z., Luo, J. W., & Wang, L. W. (2023). Light-induced ultrafast spin transport in multilayer metallic films originates from sp-d spin exchange coupling. Science Advances, 9(50). https://doi.org/10.1126/sciadv.adi1618

Readers' Seniority

Tooltip

PhD / Post grad / Masters / Doc 3

38%

Researcher 3

38%

Professor / Associate Prof. 2

25%

Readers' Discipline

Tooltip

Physics and Astronomy 7

88%

Chemistry 1

13%

Save time finding and organizing research with Mendeley

Sign up for free