Trama, M., Gaiardoni, I., Guarcello, C., Facio, J. I., Maiellaro, A., Romeo, F., Citro, R., & van den Brink, J. (2024). Non-linear anomalous Edelstein response at altermagnetic interfaces. arXiv preprint arXiv:2410.18036v1.
This research paper investigates the spin-to-charge conversion properties at altermagnetic interfaces, focusing on the interplay between altermagnetic order and Rashba spin-orbit coupling. The study aims to identify novel non-linear Edelstein effects arising from this interaction.
The researchers employed a two-dimensional effective continuum Hamiltonian to model the altermagnetic system with Rashba spin-orbit coupling. They derived expressions for linear and non-linear Edelstein susceptibilities within the Boltzmann framework. Density functional theory (DFT) calculations were performed for a RuO2 bilayer to estimate realistic material parameters and validate the model.
The interplay of altermagnetic order and Rashba spin-orbit coupling at interfaces leads to unique non-linear spin-to-charge conversion mechanisms. These findings highlight the potential of altermagnetic materials for developing novel spintronic devices based on these anomalous Edelstein responses.
This research significantly advances the understanding of spin transport phenomena in altermagnetic systems. It provides a theoretical framework for predicting and interpreting experimental observations of non-linear Edelstein effects, opening new avenues for exploring spin-charge conversion in altermagnetic materials.
The study focuses on a simplified two-dimensional model system. Further investigations should consider more realistic material properties, including magnetic anisotropy and disorder effects. Experimental verification of the predicted non-linear Edelstein responses is crucial for advancing the field.
To Another Language
from source content
arxiv.org
Key Insights Distilled From
by Mattia Trama... at arxiv.org 10-24-2024
https://arxiv.org/pdf/2410.18036.pdfDeeper Inquiries