Low Temperature Properties of Inhomogeneous Magnetic Multilayers

• Authors: A. Urbaniak-Kucharczyk
• Languages of publication: EN

Abstracts

EN

System of two magnetic layers with nonuniform distribution of anisotropy parameter and exchange coupled by nonmagnetic spacer is studied by means of the Green function approach. Our attention is focussed on the elementary excitations and low temperature magnetisation behavior. The spin wave parameter B in the Bloch law T^{3/2} is found as an oscillatory function of a spacer thickness. The effects of damping leading to non-zero line-width of ferromagnetic resonance peaks are also taken into account. As a result the dependence of resonance line-width on parameters characterizing system under consideration is obtained for the case of uniform anisotropy parameter and for quadratic distribution of this parameter in magnetic layers, respectively.

Keywords

EN

75.30.Gw; 75.70.Ak; 76.50.+g

Discipline

• 75.70.Ak: Magnetic properties of monolayers and thin films
• 75.30.Gw: Magnetic anisotropy
• 76.50.+g: Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance(see also 75.30.Ds Spin waves)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 543-545

Dates

published

2015-02

Contributors

author

A. Urbaniak-Kucharczyk

• Faculty of Physics and Applied Informatics, University of Lódź, Pomorska 149/153, 90-236 Lódź, Poland

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Identifiers

DOI

10.12693/APhysPolA.127.543