TY - JOUR
T1 - Influence on the Gilbert damping of yttrium-iron-garnet films by the spin-pumping effect
AU - Pati, Satya Prakash
N1 - Funding Information:
I would like to thank JSPS for the post-doctoral research fellowship (ID no: P17070 ). I am grateful to Prof. Masashi Sahashi of Tohoku University for providing RF and DC sputtering machine to fabricate YIG films and top/bottom electrode. I am also thankful to Assoc. Prof. Yasushi Endo, Tohoku University for help during FMR and VSM measurements and subsequent discussions.
Funding Information:
I would like to thank JSPS for the post-doctoral research fellowship (ID no: P17070). I am grateful to Prof. Masashi Sahashi of Tohoku University for providing RF and DC sputtering machine to fabricate YIG films and top/bottom electrode. I am also thankful to Assoc. Prof. Yasushi Endo, Tohoku University for help during FMR and VSM measurements and subsequent discussions.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2020/3/1
Y1 - 2020/3/1
N2 - The effect of a platinum (Pt) capping layer on the magnetization dynamics in polycrystalline yttrium iron garnet (YIG) films of various thicknesses has been studied in order to understand the influence on the Gilbert damping of YIG films by the spin-pumping at the YIG/Pt interface. The Gilbert damping in each YIG film with the Pt capping layer is found to be much higher than that of the YIG film without the Pt capping layer, as expected due to the spin-pumping effect. In comparison with the samples without capping layer, an enhanced value of interfacial spin mixing conductance can also be observed for films with the capping layer. These results demonstrate the existence of spin-pumping effect at the YIG/Pt interface which plays an important role for the enhancement of Gilbert damping.
AB - The effect of a platinum (Pt) capping layer on the magnetization dynamics in polycrystalline yttrium iron garnet (YIG) films of various thicknesses has been studied in order to understand the influence on the Gilbert damping of YIG films by the spin-pumping at the YIG/Pt interface. The Gilbert damping in each YIG film with the Pt capping layer is found to be much higher than that of the YIG film without the Pt capping layer, as expected due to the spin-pumping effect. In comparison with the samples without capping layer, an enhanced value of interfacial spin mixing conductance can also be observed for films with the capping layer. These results demonstrate the existence of spin-pumping effect at the YIG/Pt interface which plays an important role for the enhancement of Gilbert damping.
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U2 - 10.1016/j.mssp.2019.104821
DO - 10.1016/j.mssp.2019.104821
M3 - Article
AN - SCOPUS:85074633307
VL - 107
JO - Materials Science in Semiconductor Processing
JF - Materials Science in Semiconductor Processing
SN - 1369-8001
M1 - 104821
ER -