Temperature Dependence of Magnetization Damping in Heusler Alloy Films

• Authors: J. Dubowik , M. Załęski , H. Głowiński , I. Gościańska
• Languages of publication: EN

Abstracts

EN

The Gilbert damping for Co_2CrAl (Co_2Cr_{0.3}Fe_{0.7}Al) and Ni_2MnSn Heusler alloy films was investigated as a function of temperature. The best films reveals the Gilbert damping nearly independent of temperature. Magnetic relaxation in Co_2CrAl is strongly influenced by magnetic inhomogeneities due to phase separation. The best Ni_2MnSn epitaxial films have comparable Gilbert damping α of 6× 10^{-3} as half-metallic Co_2Cr_{0.3}Fe_{0.7}Al films with α = 3 × 10^{-3}.

Keywords

EN

76.50.+g; 75.70.Ak; 75.78.Jp

Discipline

• 75.70.Ak: Magnetic properties of monolayers and thin films
• 76.50.+g: Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance(see also 75.30.Ds Spin waves)
• 75.78.Jp: Ultrafast magnetization dynamics and switching(for switching phenomena in ferroelectrics, see 77.80.Fm; for ultrafast spectroscopy, see 78.47.J-; for ultrafast processes in optics, see 42.65.Re)

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 848-850

Dates

published

2010-11

Contributors

author

J. Dubowik

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

M. Załęski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

H. Głowiński

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

I. Gościańska

• Department of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.118.848