Magnetic Damping in Ferromagnetic Thin Films

Abstract Since its discovery, yttrium iron garnet (YIG) has been object of great interest because of its peculiarly low magnetic damping. Magnetic materials with reduced damping promote microwave power efficiency, longer magnon lifetime and longer spin-wave propagation. Owing to research on charge-to-spin current conversion, the control of magnetic damping in ferromagnetic thin films has recently been achieved by inducing charge current on adjacent metal layer with strong spin-orbit coupling (SOC). We report damping reduction in metallized YIG thin films (YIG/Ag/Ni) without the need of applied charge current and suggest that the origin of this unexpected effect is a strengthening of the FMR uniform mode in the YIG layer, due to frequency- and phase-locking that result from self-synchronization mediated by nonzero spin densities transiting the metallic layers.

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Magnetic damping phenomena in ferromagnetic thin-films and multilayers

Journal of Physics D Applied Physics ◽

10.1088/1361-6463/aa8dad ◽

2017 ◽

Vol 50 (47) ◽

pp. 473001 ◽

Cited By ~ 23

Author(s):

S Azzawi ◽

A T Hindmarch ◽

D Atkinson

Keyword(s):

Thin Films ◽

Magnetic Damping ◽

Ferromagnetic Thin Films

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Wall Streaming in Ferromagnetic Thin Films

Journal of Applied Physics ◽

10.1063/1.1709138 ◽

1967 ◽

Vol 38 (11) ◽

pp. 4401-4408 ◽

Cited By ~ 33

Author(s):

K. U. Stein ◽

E. Feldtkeller

Keyword(s):

Thin Films ◽

Ferromagnetic Thin Films

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The role of iron in magnetic damping of Mg(Al,Fe)2O4 spinel ferrite thin films

Applied Physics Letters ◽

10.1063/5.0003628 ◽

2020 ◽

Vol 116 (14) ◽

pp. 142406 ◽

Cited By ~ 2

Author(s):

Jacob J. Wisser ◽

Lauren J. Riddiford ◽

Aaron Altman ◽

Peng Li ◽

Satoru Emori ◽

...

Keyword(s):

Thin Films ◽

Spinel Ferrite ◽

Magnetic Damping ◽

Ferrite Thin Films

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The measurement of magnetostriction in ferromagnetic thin films

IEEE Transactions on Magnetics ◽

10.1109/tmag.1976.1059251 ◽

1976 ◽

Vol 12 (6) ◽

pp. 819-821 ◽

Cited By ~ 192

Author(s):

E. Klokholm

Keyword(s):

Thin Films ◽

Ferromagnetic Thin Films

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Characterization of the order-annealing response of nanostructured iron-palladium based ferromagnetic thin-films

MRS Proceedings ◽

10.1557/proc-703-v3.4 ◽

2001 ◽

Vol 703 ◽

Author(s):

Huiping Xu ◽

Adam T. Wise ◽

Timothy J. Klemmer ◽

Jörg M. K. Wiezorek

Keyword(s):

Thin Films ◽

Grain Growth ◽

Room Temperature ◽

Si Substrate ◽

Ferromagnetic Thin Films ◽

Precipitation Reactions ◽

Post Deposition ◽

Xrd And Tem ◽

Iron Palladium

ABSTRACTA combination of XRD and TEM techniques have been used to characterize the response of room temperature magnetron sputtered Fe-Pd thin films on Si-susbtrates to post-deposition order-annealing at temperatures between 400-500°C. Deposition produced the disordered Fe-Pd phase with (111)-twinned grains approximately 18nm in size. Ordering occurred for annealing at 450°C and 500°C after 1.8ks, accompanied by grain growth (40-70nm). The ordered FePd grains contained (111)-twins rather than {101}-twins typical of bulk ordered FePd. The metallic overlayers and underlayers selected here produced detrimental dissolution (Pt into Fe-Pd phases) and precipitation reactions between Pd and the Si substrate.

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