Detecting slow magnetization relaxation via magnetotransport measurements based on the current-reversal method
Materials Science
2024-05-24 v1 Mesoscale and Nanoscale Physics
Abstract
Slow magnetization relaxation processes are an important time-dependent property of many magnetic materials. We show that magnetotransport measurements based on a well-established current-reversal method can be utilized to implement a simple and robust screening scheme for such relaxation processes. We demonstrate our approach considering the anomalous Hall effect in a Pt/Co/AlOx trilayer model system, and then explore relaxation in {\tau} -MnAl films. Compared to magnetotransport experiments based on ac lock-in techniques, we find that the dc current-reversal method is particulary sensitive to relaxation processes with relaxation time scales on the order of seconds, comparable to the current-reversal measurement time scales.
Keywords
Cite
@article{arxiv.2405.14460,
title = {Detecting slow magnetization relaxation via magnetotransport measurements based on the current-reversal method},
author = {Sebastian Beckert and Richard Schlitz and Gregor Skobjin and Antonin Badura and Miina Leiviskä and Dominik Kriegner and Daniel Scheffler and Giacomo Sala and Kamil Olejník and Lisa Michez and Vincent Baltz and Andy Thomas and Helena Reichlová and Sebastian T. B. Goennenwein},
journal= {arXiv preprint arXiv:2405.14460},
year = {2024}
}