Engineering the Exchange Spin Waves in Graded Thin Ferromagnetic Films

Igor Yanilkin ^{1, 2}

A I Gumarov ^{1, 2}

I.A. Golovchanskiy ^{3, 4}

Bulat F. Gabbasov ^{1, 2}

Roman V. Yusupov ¹

L.R. Tagirov ^{1, 2}

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Institute of Physics, Kazan Federal University, 420008 Kazan, Russia |

FRC Kazan Scientific Centre of RAS, Zavoisky Physical-Technical Institute, 420029 Kazan, Russia

National University of Science and Technology MISIS, 119049 Moscow, Russia |

⁴

Advanced Mesoscience and Nanotechnology Centre, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia |

Publication type: Journal Article

Publication date: 2022-12-07

MDPI

Journal: Nanomaterials

scimago Q1

SJR: 0.798

CiteScore: 8.5

Impact factor: 4.4

ISSN: 20794991

DOI: 10.3390/nano12244361

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General Chemical Engineering

General Materials Science

Abstract

The results of experimental and theoretical studies of standing spin waves in a series of epitaxial films of the ferromagnetic Pd1−xFex alloy (0.02 < x < 0.11) with different distributions of the magnetic properties across the thickness are presented. Films with linear and stepwise, as well as more complex Lorentzian, sine and cosine profiles of iron concentration in the alloy, and thicknesses from 20 to 400 nm are considered. A crucial influence of the magnetic properties profile on the spectrum of spin wave resonances is demonstrated. A capability of engineering the standing spin waves in graded ferromagnetic films for applications in magnonics is discussed.

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Bulletin of the Russian Academy of Sciences: Physics	Bulletin of the Russian Academy of Sciences: Physics, 1, 33.33% Bulletin of the Russian Academy of Sciences: Physics 1 publication, 33.33%
Physical Review B	Physical Review B, 1, 33.33% Physical Review B 1 publication, 33.33%
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American Vacuum Society	American Vacuum Society, 1, 33.33% American Vacuum Society 1 publication, 33.33%
Pleiades Publishing	Pleiades Publishing, 1, 33.33% Pleiades Publishing 1 publication, 33.33%
American Physical Society (APS)	American Physical Society (APS), 1, 33.33% American Physical Society (APS) 1 publication, 33.33%
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