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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Morishita, J. Niizeki, T. Suzuki, K.Z. Yanagihara, H. Kita, E. |
| Copyright Year | 1965 |
| Abstract | Thin films of NiFe2O4 were fabricated on MgO (001) and MgAl2O4 (MAO) (001) substrates by reactive radio frequency magnetron sputtering and were evaluated with regards to their electrical and magnetic properties. A saturation magnetization of 285 emu/cm3 was obtained with a 30 nm thick film grown on an MAO substrate at an oxygen flow rate, Q, of 9 sccm. This enhanced magnetization was found to be due to a normal spinel arrangement at the interface. From the thickness dependence of the magnetization, the intrinsic magnetization was determined as 241 emu/cm3 with the enhancement region estimated to be around 3/4 of the lattice constant, thus providing 8 μB/f.u. The magnetization of those films grown on an MgO substrate exhibited remarkably smaller amplitudes to those of the MAO substrates. It is suggested that this substrate-dependent magnetization can be attributed to the number of antiphase boundaries. The resistivity was found to increase with Q, with a resistivity state in the same order as that of the bulk achieved with films prepared in which Q was greater than 10 sccm. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 1 |
| Ending Page | 4 |
| Page Count | 4 |
| File Size | 2756871 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 50 |
| Issue Number | 11 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Substrates Magnetization Saturation magnetization Epitaxial growth Sputtering Ferrites Temperature measurement reactive sputtering MgAl2O4 (MAO) substrate MgO substrate NiFe2O4 epitaxial thin film |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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