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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Phan, T.L. Zhang, Y.D. Dan, N.H. Thang, D.D. Thanh, T.D. Zhang, P. Yu, S.C. |
| Copyright Year | 1965 |
| Abstract | We have studied the magnetic properties of Nd45Fe30Co15Al10 alloy ribbons with various thicknesses of about 120 (N1) and 50 μm (N2) prepared by melt-spinning. Structural analyses based on an X-ray diffractometer and a high-resolution transmission electron microscope revealed an existence of nanocrystals with sizes of 10 ~ 20 nm surrounded by an amorphous host matrix. With decreasing ribbon thickness and nanocrystalline size, magnetic studies upon a vibrating sample magnetometer indicated the decrease of the Curie temperature (TC), coercive force (Hc), and magnetic entropy change (ΔSm). In the ferromagnetic region, however, magnetization values determined for N2 are greater than those determined for N1. These results are related to the differences in the critical exponents of N1 (β=0.418 and γ=1.173), and N2 (β=0.512 and γ=1.077), which are characteristic for the ferromagnetic nature existing in the alloy ribbons with different thicknesses. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 3375 |
| Ending Page | 3378 |
| Page Count | 4 |
| File Size | 919475 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 49 |
| Issue Number | 7 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Metals Amorphous magnetic materials Nanocrystals Magnetic properties Frequency modulation Magnetic levitation Temperature dependence rapidly cooled Nd-Fe-Co-Al ribbons Critical behaviors |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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