• Rapid Communication

Ordered structure of FeGe2 formed during solid-phase epitaxy

B. Jenichen, M. Hanke, S. Gaucher, A. Trampert, J. Herfort, H. Kirmse, B. Haas, E. Willinger, X. Huang, and S. C. Erwin
Phys. Rev. Materials 2, 051402(R) – Published 21 May 2018
PDFHTMLExport Citation

Abstract

Fe3Si/Ge(Fe,Si)/Fe3Si thin-film stacks were grown by a combination of molecular beam epitaxy and solid-phase epitaxy (Ge on Fe3Si). The stacks were analyzed using electron microscopy, electron diffraction, and synchrotron x-ray diffraction. The Ge(Fe,Si) films crystallize in the well-oriented, layered tetragonal structure FeGe2 with space group P4mm. This kind of structure does not exist as a bulk material and is stabilized by the solid-phase epitaxy of Ge on Fe3Si. We interpret this as an ordering phenomenon induced by minimization of the elastic energy of the epitaxial film.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 11 April 2018

DOI:https://doi.org/10.1103/PhysRevMaterials.2.051402

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

B. Jenichen*, M. Hanke, S. Gaucher, A. Trampert, and J. Herfort

  • Paul-Drude-Institut für Festkörperelektronik, Leibniz-Institut im Forschungsverbund Berlin e.V., Hausvogteiplatz 5–7, D-10117 Berlin, Germany

H. Kirmse and B. Haas

  • Humboldt-Universität zu Berlin, Institut für Physik, Newtonstraße 15, D-12489 Berlin, Germany

E. Willinger and X. Huang

  • Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4, D-14195 Berlin, Germany

S. C. Erwin

  • Center for Computational Materials Science, Naval Research Laboratory, Washington, DC 20375, USA

  • *bernd.jenichen@pdi-berlin.de

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 2, Iss. 5 — May 2018

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Materials

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×