Journal
APPLIED PHYSICS LETTERS
Volume 118, Issue 25, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/5.0054502
Keywords
-
Categories
Funding
- Samsung Research Funding & Incubation Center of Samsung Electronics [SRFC-MA2001-03]
- National Research Foundation (NRF) of Korea [NRF-2020R1A2C3013302]
Ask authors/readers for more resources
The study demonstrates that a short-pulsed spin current can induce fast dynamics of metallic antiferromagnets via spin-transfer torque on the magnetization of sublattices, using two methods to generate the spin current. Results provide evidence of the direct interaction between the magnetization of antiferromagnets and spin current.
Antiferromagnets are promising materials for memory devices owing to their ultrafast spin dynamics. For efficient control of antiferromagnets, a direct interaction between the spin current and local magnetization of the sublattice is required. In this study, we demonstrated that a short-pulsed spin current can induce fast dynamics of metallic antiferromagnets of PtMn and IrMn via spin-transfer torque on the magnetization of sublattices. We employed two methods to generate a short-pulsed spin current, namely ultrafast demagnetization of a ferromagnet and optical spin polarization of a heavy metal. The magnetization dynamics were measured using the time-resolved magneto-optical Kerr effect and were analyzed using the Landau-Lifshitz-Gilbert equation. Our results provide important evidence of the direct interaction between the magnetization of antiferromagnets and spin current.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available