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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Benaissa, M. Krishnan, K.M. Fullerton, E.E. Jiang, J.S. |
| Copyright Year | 1965 |
| Abstract | Microstructural features and magnetic behavior of epitaxially grown SmCo thin films with very high in-plane anisotropy are presented. Transmission electron microscopy was used to characterize the microstructure while magnetic measurements were performed using dc and SQUID magnetometers. Two substrate orientations were studied, i.e., MgO(100)/Cr(100)/SmCo(1120) and MgO[110]/Cr(211)/smCo(1100). In the former, the SmCo(1120) film shows a bicrystalline microstructure, whereas in the latter, a uniaxial one is observed. Both microstructures consist of grains with a mixture of SmCo/sub 3/, Sm/sub 2/Co/sub 7/ and SmCo/sub 5/ polytypoids. A deviation from the c-axes was observed in the in-plane anisotropy of the SmCo(1120) thin film. A strong exchange interaction between the grains would, in principle, explain the observed deviation, On the other hand, both SmCo(1120) and (1100) thin films show very high coercivity values with pinning-type characteristics. Possible coercivity mechanisms related to intergranular exchange interactions and local variation in magnetocrystalline anisotropy constants are discussed. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 1204 |
| Ending Page | 1206 |
| Page Count | 3 |
| File Size | 565225 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 34 |
| Issue Number | 4 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1998-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic anisotropy Anisotropic magnetoresistance Microstructure Perpendicular magnetic anisotropy Magnetic films Transistors Elementary particle exchange interactions Coercive force Electrons Magnetic force microscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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