Kim, J-Y., Ionescu, A., Mansell, R. et al. (11 more authors) (2017) Structural and magnetic properties of ultra-thin Fe films on metal-organic chemical vapour deposited GaN(0001). Journal of Applied Physics, 121 (4). 043904. ISSN 0021-8979
Abstract
Structural and magnetic properties of 1-10 nm thick Fe films deposited on GaN(0001) were investigated. In-situ reflecting high energy electron diffraction images indicated a α-Fe(110)/GaN(0001) growth of the 3D Volmer-Weber type. The α-Fe(110) XRD peak showed a 1° full-width at half-maximum, indicating ≈ 20 nm grain sizes. A significant reduction in Fe atomic moment from its bulk value was observed for films thinner than 4 nm. Both GaN/Fe interface roughness and Fe film coercivity increased with Fe thickness, indicating a possible deterioration of Fe crystalline quality. Magnetic anisotropy was mainly uniaxial for all films while hexagonal anisotropies appeared for thicknesses higher than 3.7 nm.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 The Authors. This is an author produced version of a paper subsequently published in Journal of Applied Physics. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 09 Mar 2017 15:19 |
Last Modified: | 23 Mar 2018 20:20 |
Published Version: | https://doi.org/10.1063/1.4973956 |
Status: | Published |
Publisher: | AIP Publishing |
Refereed: | Yes |
Identification Number: | 10.1063/1.4973956 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:113269 |