Impact of ferromagnetic layer thickness on the spin pumping in Co60Fe20B20/Ta bilayer thin films

We report the tuneable spin angular momentum transfer (spin pumping) from Co 60 Fe 20 B 20 (CFB) amorphous alloy into the Ta heavy metal nanolayers. All the films are grown on Si (100) substrate at room temperature using ion-beam sputtering technique. Structural studies reveal that the grown Ta film...

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Veröffentlicht in:	Journal of materials science. Materials in electronics 2021-05, Vol.32 (9), p.12453-12465
Hauptverfasser:	Hait, Soumyarup, Husain, Sajid, Gupta, Nanhe Kumar, Behera, Nilamani, Kumar, Ankit, Gupta, Rahul, Barwal, Vineet, Pandey, Lalit, Svedlindh, Peter, Chaudhary, Sujeet
Format:	Artikel
Sprache:	eng
Schlagworte:	Amorphous alloys Angular momentum beta-ta Bilayers Characterization and Evaluation of Materials Chemistry and Materials Science cofeb Damping Engineering Ferromagnetic resonance Ferromagnetism Fysik hall Heavy metals Interface roughness Ion beam sputtering Magnetic fields Materials Engineering Materials Science Materialteknik Metallic glasses Momentum transfer Optical and Electronic Materials Physical Sciences Physics Pumping Room temperature Silicon substrates Spectrum analysis Spintronics system Thickness Thin films
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Zusammenfassung:	We report the tuneable spin angular momentum transfer (spin pumping) from Co 60 Fe 20 B 20 (CFB) amorphous alloy into the Ta heavy metal nanolayers. All the films are grown on Si (100) substrate at room temperature using ion-beam sputtering technique. Structural studies reveal that the grown Ta films over amorphous CFB are crystalline even at ultrathin regime. The bilayers possess very low interface roughness (
ISSN:	0957-4522 1573-482X 1573-482X
DOI:	10.1007/s10854-021-05876-9