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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引用次数: 0
摘要
我们报告了在 MgAl2O4 (001) 基底上沉积的薄膜中发现的边界诱导体心四方铁相。我们利用详细的 X 射线分析和非初始密度泛函理论计算为这一相提供了证据。与体心立方铁相比,我们观察到了较低的磁矩和易磁化方向的旋转。我们的发现扩大了铁的已知晶体和磁性相的范围,为利用超薄铁层开发异质结构器件提供了宝贵的见解。
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.