Effects of hydrogen absorption on magnetism in trilayers

Charles Weiss; René Hübner; Martin Saunders; Anna Semisalova; Jonathan Ehrler; Nataliia Schmidt; Johannes Seyd; Manfred Albrecht; Shadab Anwar; Jürgen Lindner; Kay Potzger; Mikhail Kostylev

doi:10.1103/PhysRevB.104.094429

Effects of hydrogen absorption on magnetism in trilayers

Charles Weiss, René Hübner, Martin Saunders, Anna Semisalova, Jonathan Ehrler, Nataliia Schmidt, Johannes Seyd, Manfred Albrecht, Shadab Anwar, Jürgen Lindner, Kay Potzger, Mikhail Kostylev

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

2 Citations (Scopus)

Abstract

The effects of hydrogen absorption on the effective magnetization , gyromagnetic ratio , Gilbert damping constant , and the inhomogeneous linewidth broadening in (16 nm)/Pd(15 nm) trilayer films (, 3, 5, 8, 10, 20, 40 nm) were investigated with ferromagnetic resonance (FMR), transmission electron microscopy, and vibrating sample magnetometry. In the presence of a hydrogen atmosphere, the samples show a reduction of their FMR linewidth which is found to stem purely from a reduction of the inhomogeneous linewidth broadening. This is attributed to a rearrangement of atoms at the Py/Y interface in the presence of hydrogen, making the Py/Y interface more homogeneous. In addition, a reduction of was seen for all samples in the hydrogen atmosphere which is typical for an increase of the interfacial perpendicular magnetic anisotropy at the Py/Y interface.

Original language	English
Article number	A17
Journal	Physical Review B
Volume	104
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.104.094429
Publication status	Published - 1 Sep 2021

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title = "Effects of hydrogen absorption on magnetism in trilayers",

abstract = "The effects of hydrogen absorption on the effective magnetization , gyromagnetic ratio , Gilbert damping constant , and the inhomogeneous linewidth broadening in (16 nm)/Pd(15 nm) trilayer films (, 3, 5, 8, 10, 20, 40 nm) were investigated with ferromagnetic resonance (FMR), transmission electron microscopy, and vibrating sample magnetometry. In the presence of a hydrogen atmosphere, the samples show a reduction of their FMR linewidth which is found to stem purely from a reduction of the inhomogeneous linewidth broadening. This is attributed to a rearrangement of atoms at the Py/Y interface in the presence of hydrogen, making the Py/Y interface more homogeneous. In addition, a reduction of was seen for all samples in the hydrogen atmosphere which is typical for an increase of the interfacial perpendicular magnetic anisotropy at the Py/Y interface.",

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T1 - Effects of hydrogen absorption on magnetism in trilayers

AU - Weiss, Charles

AU - Hübner, René

AU - Saunders, Martin

AU - Semisalova, Anna

AU - Ehrler, Jonathan

AU - Schmidt, Nataliia

AU - Seyd, Johannes

AU - Albrecht, Manfred

AU - Anwar, Shadab

AU - Lindner, Jürgen

AU - Potzger, Kay

AU - Kostylev, Mikhail

PY - 2021/9/1

Y1 - 2021/9/1

N2 - The effects of hydrogen absorption on the effective magnetization , gyromagnetic ratio , Gilbert damping constant , and the inhomogeneous linewidth broadening in (16 nm)/Pd(15 nm) trilayer films (, 3, 5, 8, 10, 20, 40 nm) were investigated with ferromagnetic resonance (FMR), transmission electron microscopy, and vibrating sample magnetometry. In the presence of a hydrogen atmosphere, the samples show a reduction of their FMR linewidth which is found to stem purely from a reduction of the inhomogeneous linewidth broadening. This is attributed to a rearrangement of atoms at the Py/Y interface in the presence of hydrogen, making the Py/Y interface more homogeneous. In addition, a reduction of was seen for all samples in the hydrogen atmosphere which is typical for an increase of the interfacial perpendicular magnetic anisotropy at the Py/Y interface.

AB - The effects of hydrogen absorption on the effective magnetization , gyromagnetic ratio , Gilbert damping constant , and the inhomogeneous linewidth broadening in (16 nm)/Pd(15 nm) trilayer films (, 3, 5, 8, 10, 20, 40 nm) were investigated with ferromagnetic resonance (FMR), transmission electron microscopy, and vibrating sample magnetometry. In the presence of a hydrogen atmosphere, the samples show a reduction of their FMR linewidth which is found to stem purely from a reduction of the inhomogeneous linewidth broadening. This is attributed to a rearrangement of atoms at the Py/Y interface in the presence of hydrogen, making the Py/Y interface more homogeneous. In addition, a reduction of was seen for all samples in the hydrogen atmosphere which is typical for an increase of the interfacial perpendicular magnetic anisotropy at the Py/Y interface.

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JO - Physical Review B

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Effects of hydrogen absorption on magnetism in trilayers

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