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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Fu, Y. Sun, L. Wang, J.S. Bai, X.J. Kou, Z.X. Zhai, Y. Du, J. Wu, J. Xu, Y.B. Lu, H.X. Zhai, H.R. |
| Copyright Year | 1965 |
| Abstract | (Ni83Fe17)1-x-Gdx thin films (30 nm) are deposited by sputtering at room temperature and studied using X-ray diffraction, vibrating sample magnetometer, and ferromagnetic resonance (FMR). The film structure changes from polycrystalline to amorphous when Gd content is around 5.7%. The magnetization is reduced almost linearly with the increase of the Gd content, while the high hysteresis squareness along the in-plane easy-axis, the low coercivity Hc of less than 10 Oe, and the high maximum permeability of around 1000 are all preserved. Theoretical fitting of angular dependences of FMR field yields the second and forth order perpendicular anisotropy constants Kperp1 and Kperp2 which show a spin reorientation with increasing Gd doping. The FMR linewidth is fitted by considering the contributions from Gilbert damping and inhomogeneous broadening. It is found that the damping coefficient alpha is tripled along with an enhancement of the gyromagnetic ratio gamma when the Gd content rises to 9.3%. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 4004 |
| Ending Page | 4007 |
| Page Count | 4 |
| File Size | 230198 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 45 |
| Issue Number | 10 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-10-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic properties Magnetic resonance Sputtering Damping Iron Temperature X-ray imaging X-ray diffraction Magnetometers Amorphous materials magnetic films Doping ferromagnetic resonance gadolinium |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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