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  Enhanced hyperfine magnetic fields for face-centered tetragonal Fe(110) ultrathin films on vicinal Pd(110)

Roldan Cuenya, B., Keune, W., Li, D., & Bader, S. D. (2005). Enhanced hyperfine magnetic fields for face-centered tetragonal Fe(110) ultrathin films on vicinal Pd(110). Physical Review B, 71(6): 064409. doi:10.1103/PhysRevB.71.064409.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0006-E403-5 Version Permalink: https://hdl.handle.net/21.11116/0000-0008-31D0-5
Genre: Journal Article

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PhysRevB.71.064409.pdf (Publisher version), 250KB
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 Creators:
Roldan Cuenya, Beatriz1, Author           
Keune, W.2, Author
Li, Dongqi3, Author
Bader, S. D.3, Author
Affiliations:
1Physics Department, University of Central Florida, ou_persistent22              
2Fachbereich Physik, Universität Duisburg-Essen (Campus Duisburg), D-47048 Duisburg, Germany, ou_persistent22              
3Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA, ou_persistent22              

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 Abstract: The structure and hyperfine magnetic properties of epitaxial Fe ultrathin films on a vicinal Pd(110) surface have been investigated by means of low-energy electron diffraction (LEED), reflection high-energy electron diffraction (RHEED) and 57Fe conversion electron Mössbauer spectroscopy (CEMS). LEED and RHEED provide evidence for initial pseudomorphic film growth. The RHEED determination of the in-plane atomic distance versus Fe film thickness demonstrates the stabilization of the metastable fcc-like Fe structure on Pd(110). This interpretation is supported by in situ 57Fe CEMS measurements which indicate an enhanced saturation hyperfine field of ∼ 39 T for a 3-monolayers-thick Fe film at 25 K. This is the highest value ever measured for Fe on a metallic substrate. Our results suggest that ultrathin fcc-like (face-centered tetragonal) Fe films on Pd(110) are in a ferromagnetic high-moment state with an enhanced hyperfine field due to electronic 3d‐4d hybridization at the Fe∕Pd interface.

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Language(s): eng - English
 Dates: 2004-12-142004-10-052005-02-012005-02
 Publication Status: Issued
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.71.064409
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: 9 Volume / Issue: 71 (6) Sequence Number: 064409 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008