Effect of Hydrogen Gas on Ferromagnetic Resonance Properties of Ni-Co-Pd Ternary Alloy Films

Thomas A. Schefer; Mariusz Martyniuk; Mikhail Kostylev

doi:10.1109/TMAG.2020.3013988

Effect of Hydrogen Gas on Ferromagnetic Resonance Properties of Ni-Co-Pd Ternary Alloy Films

Thomas A. Schefer, Mariusz Martyniuk, Mikhail Kostylev

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We investigate the ferromagnetic resonance (FMR) response of thin NixCoyPd1-x-y alloy films. An FMR shift similar to Co-Pd alloy thin films is found in the presence of hydrogen gas in the sample environment. We find that the measured change in effective magnetization has an exponential dependence on the Pd concentration in the alloy. Additionally, we find a sudden decrease in sensitivity to hydrogen for low hydrogen concentrations.

Original language	English
Article number	9154727
Journal	IEEE Transactions on Magnetics
Volume	57
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.2020.3013988
Publication status	Published - Feb 2021

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abstract = "We investigate the ferromagnetic resonance (FMR) response of thin NixCoyPd1-x-y alloy films. An FMR shift similar to Co-Pd alloy thin films is found in the presence of hydrogen gas in the sample environment. We find that the measured change in effective magnetization has an exponential dependence on the Pd concentration in the alloy. Additionally, we find a sudden decrease in sensitivity to hydrogen for low hydrogen concentrations. ",

keywords = "Ferromagnetic resonance (FMR), hydrogen gas sensing, palladium, perpendicular magnetic anisotropy (PMA)",

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N2 - We investigate the ferromagnetic resonance (FMR) response of thin NixCoyPd1-x-y alloy films. An FMR shift similar to Co-Pd alloy thin films is found in the presence of hydrogen gas in the sample environment. We find that the measured change in effective magnetization has an exponential dependence on the Pd concentration in the alloy. Additionally, we find a sudden decrease in sensitivity to hydrogen for low hydrogen concentrations.

AB - We investigate the ferromagnetic resonance (FMR) response of thin NixCoyPd1-x-y alloy films. An FMR shift similar to Co-Pd alloy thin films is found in the presence of hydrogen gas in the sample environment. We find that the measured change in effective magnetization has an exponential dependence on the Pd concentration in the alloy. Additionally, we find a sudden decrease in sensitivity to hydrogen for low hydrogen concentrations.

KW - Ferromagnetic resonance (FMR)

KW - hydrogen gas sensing

KW - palladium

KW - perpendicular magnetic anisotropy (PMA)

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Effect of Hydrogen Gas on Ferromagnetic Resonance Properties of Ni-Co-Pd Ternary Alloy Films

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