Anna L. Ravensburg, Mirosław Werwiński, Justyna Rychły-Gruszecka, Justyn Snarski-Adamski, Anna Elsukova, Per O. Å. Persson, Ján Rusz, Rimantas Brucas, Björgvin Hjörvarsson, Peter Svedlindh, Gunnar K. Pálsson, Vassilios Kapaklis
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Abstract
We report on the discovery of a boundary-induced body-centered tetragonal iron phase in thin films deposited on (001) substrates. We present evidence for this phase using detailed x-ray analysis and ab initio 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.
期刊介绍：
Physical Review Materials is a new broad-scope international journal for the multidisciplinary community engaged in research on materials. It is intended to fill a gap in the family of existing Physical Review journals that publish materials research. This field has grown rapidly in recent years and is increasingly being carried out in a way that transcends conventional subject boundaries. The journal was created to provide a common publication and reference source to the expanding community of physicists, materials scientists, chemists, engineers, and researchers in related disciplines that carry out high-quality original research in materials. It will share the same commitment to the high quality expected of all APS publications.
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