Hirohata, Atsufumi orcid.org/0000-0001-9107-2330, Frost, William orcid.org/0000-0001-5249-1006, Samiepour, Marjan et al. (1 more author) (2018) Perpendicular Magnetic Anisotropy in Heusler Alloy Films and Their Magnetoresistive Junctions. Materials. 105. ISSN 1996-1944
Abstract
For the sustainable development of spintronic devices, a half-metallic ferromagnetic film needs to be developed as a spin source with exhibiting 100% spin polarisation at its Fermi level at room temperature. One of the most promising candidates for such a film is a Heusler-alloy film, which has already been proven to achieve the half-metallicity in the bulk region of the film. The Heusler alloys have predominantly cubic crystalline structures with small magnetocrystalline anisotropy. In order to use these alloys in perpendicularly magnetised devices, which are advantageous over in-plane devices due to their scalability, lattice distortion is required by introducing atomic substitution and interfacial lattice mismatch. In this review, recent development in perpendicularly-magnetised Heusler-alloy films is overviewed and their magnetoresistive junctions are discussed. Especially, focus is given to binary Heusler alloys by replacing the second element in the ternary Heusler alloys with the third one, e.g., MnGa and MnGe, and to interfacially-induced anisotropy by attaching oxides and metals with different lattice constants to the Heusler alloys. These alloys can improve the performance of spintronic devices with higher recording capacity.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 by 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) The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 12 Jan 2018 09:20 |
Last Modified: | 25 Nov 2024 00:30 |
Published Version: | https://doi.org/10.3390/ma11010105 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.3390/ma11010105 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:126180 |
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Filename: materials_heusler_180104r.docx
Description: Perpendicular Magnetic Anisotropy in Heusler Alloy Films and Their Magnetoresistive Junctions