Boundary-induced phase in epitaxial iron layers
We report on the discovery of a boundary-induced body-centered tetragonal iron phase in thin films deposited on <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:msub><a:mi>MgAl</a:mi><a:mn>2</a:mn></a:msub><a:msub><a:mi mathvariant="normal">O</a:mi><a:mn>4</a:mn></a:msub></a:mrow></a:math> (001) substrates. We present evidence for this phase using detailed x-ray analysis and density functional theory calculations. A lower magnetic moment and a rotation of the easy magnetization direction are observed, as compared with body-centered cubic iron. Our findings expand the range of known crystal and magnetic phases of iron, providing valuable insights for the development of heterostructure devices using ultrathin iron layers. Published by the American Physical Society 2024
Authors
- Peter Svedlindh (ORCID: https://orcid.org/0000-0002-3049-6831)
- Rimantas Bručas (ORCID: https://orcid.org/0000-0002-6043-9248)
- Anna Elsukova (ORCID: https://orcid.org/0000-0002-4647-3642)
- Justyna Rychły-Gruszecka (ORCID: https://orcid.org/0000-0003-3630-114X)
- Gunnar K. Pálsson (ORCID: https://orcid.org/0000-0001-5997-8597)
- Vassilios Kapaklis (ORCID: https://orcid.org/0000-0002-6105-1659)
- Bjørgvin Hjörvarsson (ORCID: https://orcid.org/0000-0003-1803-9467)
- Justyn Snarski-Adamski (ORCID: https://orcid.org/0000-0003-0374-311X)
- Anna L. Ravensburg (ORCID: https://orcid.org/0000-0001-9502-8599)
- Mirosław Werwiński (ORCID: https://orcid.org/0000-0003-1934-4818)
- Ján Rusz (ORCID: https://orcid.org/0000-0002-0074-1349)
- Per O. Å. Persson (ORCID: https://orcid.org/0000-0001-9140-6724)
Institutions
- Linköping University (SE)
- Uppsala University (SE)
- Polish Academy of Sciences (PL)
Publication Details
- Journal
- Physical Review Materials
- Published
- 2024-08-12
- DOI
- https://doi.org/10.1103/physrevmaterials.8.l081401
- Citations
- 1
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 0.34
Funders
- Stiftelsen för Strategisk Forskning
- Knut och Alice Wallenbergs Stiftelse
- Narodowe Centrum Nauki
- Vetenskapsrådet
- Energimyndigheten