Thickness Dependent Magnetic Study of Fe Thin Films
| Authors | R. Brajpuriya , A. Vij, Ram K. Sharma |
| Affiliations |
University of Petroleum and Energy Studies (UPES), PO Bidholi Via Premnager, Dehradun, Uttarakhand, India |
| Е-mail | ranjeetbjp@yahoo.co.in |
| Issue | Volume 13, Year 2021, Number 4 |
| Dates | Received 11 March 2021; revised manuscript received 12 August 2021; published online 20 August 2021 |
| Citation | R. Brajpuriya, A. Vij, Ram K. Sharma, J. Nano- Electron. Phys. 13 No 4, 04005 (2021) |
| DOI | https://doi.org/10.21272/jnep.13(4).04005 |
| PACS Number(s) | 75.70. – I, 85.70.Kh, 81.15.Jj |
| Keywords | Fe thin film, VSM (2) , Magnetic properties (7) , Electron beam evaporation. |
| Annotation |
In the present work, studies of the magnetic properties of Fe films of various thickness (150, 200, 300, and 400 Å) deposited on float glass substrate by electron beam (EB) deposition technique are reported. The investigation was prompted by the lack of data on evaporated Fe films in this thickness regime. For comparison, the magnetic properties of a Fe film deposited by ion beam sputtering (IBS) technique of a thickness of 300 Å have also been investigated. Magnetic properties like coercivity, saturation magnetization, retentivity etc. have been obtained by analysis of M-H loops recorded at room temperature, and the variation in these parameters has been correlated to the film thickness. All the films show high anisotropy with respect to spin alignment with nearly all the spins lying in the plane of the film. A systematic increase in the saturation magnetization is observed with an increase in sample thickness. The magnetic properties of the IBS film are not very different from the EB samples except for a 11 % decrease in the coercivity which can be attributed to lesser roughness of the IBS film. This is reflected in the squareness ratio of nearly 1 for all the samples. |
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