Abstract
Using different experimental techniques we analyze the interplay between the structure and the magnetomechanical behavior of soft nanogranular CoFeAlO films with thickness ranging from 125 to 550 nm. The sputtered film is characterized by 40-nm FeCo grains and a saturation magnetization of 16 kG. The results show that, due to the role of the mechanically stiff and insulating Al-O matrix, an increase of the resistivity leads to an increase of the anisotropy field and also of the ferromagnetic resonance frequency. The 125-nm -thick films possess the best combination of anisotropy field and resistivity leading to an estimated ferromagnetic resonance frequency around 1.9 GHz.
| Original language | English |
|---|---|
| Article number | 10N306 |
| Journal | Journal of Applied Physics |
| Volume | 97 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2005 May 15 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
Cite this
Magnetomechanical properties of nanogranular Co-Fe-Al-O films. / Pasquale, M.; Sasso, C. P.; Magni, A.; Celegato, F.; Sohn, J. C.; Lim, Sang Ho.
In: Journal of Applied Physics, Vol. 97, No. 10, 10N306, 15.05.2005.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Magnetomechanical properties of nanogranular Co-Fe-Al-O films
AU - Pasquale, M.
AU - Sasso, C. P.
AU - Magni, A.
AU - Celegato, F.
AU - Sohn, J. C.
AU - Lim, Sang Ho
PY - 2005/5/15
Y1 - 2005/5/15
N2 - Using different experimental techniques we analyze the interplay between the structure and the magnetomechanical behavior of soft nanogranular CoFeAlO films with thickness ranging from 125 to 550 nm. The sputtered film is characterized by 40-nm FeCo grains and a saturation magnetization of 16 kG. The results show that, due to the role of the mechanically stiff and insulating Al-O matrix, an increase of the resistivity leads to an increase of the anisotropy field and also of the ferromagnetic resonance frequency. The 125-nm -thick films possess the best combination of anisotropy field and resistivity leading to an estimated ferromagnetic resonance frequency around 1.9 GHz.
AB - Using different experimental techniques we analyze the interplay between the structure and the magnetomechanical behavior of soft nanogranular CoFeAlO films with thickness ranging from 125 to 550 nm. The sputtered film is characterized by 40-nm FeCo grains and a saturation magnetization of 16 kG. The results show that, due to the role of the mechanically stiff and insulating Al-O matrix, an increase of the resistivity leads to an increase of the anisotropy field and also of the ferromagnetic resonance frequency. The 125-nm -thick films possess the best combination of anisotropy field and resistivity leading to an estimated ferromagnetic resonance frequency around 1.9 GHz.
UR - http://www.scopus.com/inward/record.url?scp=21044436795&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=21044436795&partnerID=8YFLogxK
U2 - 10.1063/1.1859213
DO - 10.1063/1.1859213
M3 - Article
AN - SCOPUS:21044436795
VL - 97
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 10
M1 - 10N306
ER -