Ogasawara, Takahiro, Jackson, Edward Alan, Tsunoda, Masakiyo et al. (2 more authors) (2019) In-plane and perpendicular exchange bias effect induced by an antiferromagnetic D019 Mn2FeGa thin film. Journal of Magnetism and Magnetic Materials. pp. 307-312. ISSN 0304-8853
Abstract
Fe-doped D019 Mn3Ga films were studied in terms of both their in-plane and perpendicular exchange bias field, Hex, induced in the attached ferromagnetic layer. The (Mn,Fe)3Ga films were deposited on a Si substrate with a Ru buffer layer with a (0001)-oriented single D019 phase at room temperature. Consequently, in-plane and perpendicular Hex were measured in bilayers with a CoFe layer and a [Co/Pt] multilayer, respectively. In-plane Hex was found to be dependent on the Fe compositions, showing the largest value of 446 Oe at 120 K for 10-nm-thick Mn1.99Fe0.41Ga. Perpendicular Hex was dependent on not only the Fe compositions but also the thickness of (Mn,Fe)3Ga, exhibiting the maximum of 163 Oe at 120 K for 5-nm-thick Mn1.96Fe0.67Ga . The median blocking temperature of both in-plane and perpendicular Hex systems for 10-nm-thick (Mn,Fe)3Ga were measured to be 235 and 240 K, respectively. The measured in-plane and perpendicular Hex induced by (Mn,Fe)3Ga are generated by a spin structural change from noncollinear to noncoplaner in ab-plane as expected from the previous theoretical study [A. Kundu and S. Ghosh, Intermetallics 93, 209 (2018)].
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 The Authors. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 17 Apr 2019 08:40 |
Last Modified: | 27 Dec 2024 00:12 |
Published Version: | https://doi.org/10.1016/j.jmmm.2019.04.024 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.jmmm.2019.04.024 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:145135 |
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