Detecting slow magnetization relaxation via magnetotransport measurements based on the current-reversal method

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 … celý popis

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arXiv.org
Hlavní autoři
Beckert, Sebastian, Schlitz, Richard, Skobjin, Gregor, Badura, Antonin, Leiviskä, Miina, Kriegner, Dominik, Scheffler, Daniel, Sala, Giacomo, Olejník, Kamil, Michez, Lisa, Baltz, Vincent, Thomas, Andy, Reichlová, Helena, Goennenwein, Sebastian T B
Typ dokumentu
Paper
Jazyk
English
Vydáno
Ithaca Cornell University Library, arXiv.org 23. 05. 2024
Témata
Hall effect
Magnetic materials
Magnetic properties
Magnetization
Relaxation time
Time dependence
Time measurement
ISSN
2331-8422
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.
AbstractList 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.
Author Kriegner, Dominik
Scheffler, Daniel
Baltz, Vincent
Michez, Lisa
Reichlová, Helena
Skobjin, Gregor
Leiviskä, Miina
Schlitz, Richard
Badura, Antonin
Sala, Giacomo
Beckert, Sebastian
Thomas, Andy
Olejník, Kamil
Goennenwein, Sebastian T B
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Snippet Slow magnetization relaxation processes are an important time-dependent property of many magnetic materials. We show that magnetotransport measurements based...
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SubjectTerms Hall effect
Magnetic materials
Magnetic properties
Magnetization
Relaxation time
Time dependence
Time measurement
Title Detecting slow magnetization relaxation via magnetotransport measurements based on the current-reversal method
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