Epitaxially stabilized iron thin films via effective strain relief from steps

T. Miyamachi; S. Nakashima; S. Kim; N. Kawamura; Y. Tatetsu; Y. Gohda; S. Tsuneyuki; F. Komori

doi:10.1103/PhysRevB.94.045439

Epitaxially stabilized iron thin films via effective strain relief from steps

Mesoscale and Nanoscale Physics 2016-08-02 v1

Authors: T. Miyamachi , S. Nakashima , S. Kim , N. Kawamura , Y. Tatetsu , Y. Gohda , S. Tsuneyuki , F. Komori

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Abstract

We show a new way to stabilize epitaxial structures against transforming bulk stable phases for Fe thin films on a vicinal Cu(001) surface. Atomically-resolved observations by scanning tunneling microscopy reveal that high-density Cu steps serve as strain relievers for keeping epitaxially-stabilized Fe fcc(001) lattice even at a transient thickness towards the bulk stable bcc(110) lattice. Spectroscopic measurements further clarify the intrinsic electronic properties of the fcc Fe thin film in real space, implying electronic differences between 6 and 7 monolayer thick films induced by the modification of the lattice constant in the topmost layers.

Keywords

epitaxial thin films thin films

Cite

@article{arxiv.1605.06822,
  title  = {Epitaxially stabilized iron thin films via effective strain relief from steps},
  author = {T. Miyamachi and S. Nakashima and S. Kim and N. Kawamura and Y. Tatetsu and Y. Gohda and S. Tsuneyuki and F. Komori},
  journal= {arXiv preprint arXiv:1605.06822},
  year   = {2016}
}

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5 pages, 5 figures

Epitaxially stabilized iron thin films via effective strain relief from steps

Abstract

Keywords

Cite

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