What is it about?
Two-dimensional antiferromagnets have become a new platform for ultrafast, energy-efficient, nanoscale memory devices. This paper shows how ultrashort laser pulses can be used to investigate antiferromagnetism in the unexplored material CoPS3. By adding another short laser pulse, we were able to quench antiferromagnetism and excite the lattice dynamics associated with magnetic order at ultrashort timescales
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Why is it important?
This work takes another step towards understanding antiferromagnets and the possibility of using them in ultrafast and energy-efficient magnetic memory. Our study reveals that the interaction between light and matter in layered antiferromagnets is not solely influenced by magnetic ordering but also by the underlying lattice structure. Unlike Heat-Assisted Magnetic Recording (HAMR), where heat is used to induce changes, we have demonstrated that the excitation of lattice vibrations in layered antiferromagnets can be achieved without relying on thermal effects. However, the quenching of antiferromagnetic properties does involve thermal processes. Consequently, layered antiferromagnets offer a promising foundation for non-thermal magnetic-assisted recording techniques.
Perspectives
Working on this article alongside my co-authors and collaborators was a rewarding experience. Throughout the project, we discovered intriguing pieces of knowledge and effectively integrated them into a cohesive narrative. Our goal was to contribute to the advancement of science and technology, providing insights that can propel us forward. It was truly exciting to uncover new findings and weave them together to create a story that can inspire progress in the field.
Dinar Khusyainov
Read the Original
This page is a summary of: Ultrafast laser-induced spin–lattice dynamics in the van der Waals antiferromagnet CoPS3, APL Materials, July 2023, American Institute of Physics,
DOI: 10.1063/5.0146128.
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