Please use this identifier to cite or link to this item:
|Title:||Soft magnetic properties and high frequency permeability in [CoAlO/oxide] multilayer films||Authors:||Ma, Y.G.
|Issue Date:||7-Jun-2007||Citation:||Ma, Y.G., Ong, C.K. (2007-06-07). Soft magnetic properties and high frequency permeability in [CoAlO/oxide] multilayer films. Journal of Physics D: Applied Physics 40 (11) : 3286-3291. ScholarBank@NUS Repository. https://doi.org/10.1088/0022-3727/40/11/005||Abstract:||A CoAlO thin film was found to have good soft magnetic properties and gigahertz frequency response when it had a thickness of tens of nanometres. Increasing the thickness by more than 100 nm rapidly increased the coercivity and seriously degraded the high frequency response. A multilayering technique (laminating the magnetic layer with oxide spacers) was exploited to improve the magnetic properties in thick films. AlOx and SiOx were used as the oxide spacing layers in this experiment. For the 105 nm CoAlO films, the easy and hard axis coercivities were reduced by more than 8 times by introducing 2 nm AlOx or 5 nm SiOx spacers. With our optimum lamination [CoAlO (52.5 nm)/AlOx (2 nm)]7, good soft magnetic properties (easy and hard axis coercivities: 21 and 14 Oe and effective anisotropy field: 54 Oe) and high frequency response (real permeability: >200 up to ∼2 GHz) were successfully obtained in a multilayer film at a thickness of 380 nm. The changes in the microstructures and film stress with the introduction of the oxide spacers are discussed in this paper. © 2007 IOP Publishing Ltd.||Source Title:||Journal of Physics D: Applied Physics||URI:||http://scholarbank.nus.edu.sg/handle/10635/97959||ISSN:||00223727||DOI:||10.1088/0022-3727/40/11/005|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Apr 4, 2020
WEB OF SCIENCETM
checked on Mar 18, 2020
checked on Mar 29, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.