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  Photoemission investigation of the electronic structure of Fe-Pd and Fe-Pt alloys

van Acker, J. F., Weijs, P. J. W., Fuggle, J. C., Horn, K., Haak, H., & Buschow, K. H. J. (1991). Photoemission investigation of the electronic structure of Fe-Pd and Fe-Pt alloys. Physical Review B, 43(11), 8903-8910. doi:10.1103/PhysRevB.43.8903.

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PhysRevB.43.8903.pdf (Publisher version), 337KB
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PhysRevB.43.8903.pdf
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1991
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APS
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 Creators:
van Acker, J. F.1, Author
Weijs, P. J. W.1, Author
Fuggle, J. C.1, Author
Horn, Karsten2, Author           
Haak, Henrik2, Author           
Buschow, K. H. J.3, Author
Affiliations:
1Research Institute for Materials, University of Nijmegen, Toernooiveld, Nl-6525 ED Nijmegen, The Netherlands, ou_persistent22              
2Fritz Haber Institute, Max Planck Society, ou_24021              
3Philips Research Laboratories, P.O. Box 80000, Nl-5600 JA Eindhoven, The Netherlands, ou_persistent22              

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 Abstract: A photoemission investigation of Fe-Pd and Fe-Pt transition-metal alloys, using ∼50–150-eV synchrotron radiation, is presented. We consider in particular the spectral distribution of Fe states when approaching the dilute limit. By means of the Cooper minimum in the 4d and 5d photoionization cross section, we identify structures that have mainly Fe minority- or Fe majority-spin character. The relative position of these peaks is discussed in terms of the covalent interaction between Fe 3d and Pd or Pt d states. Also, the strong resemblance between the distribution of Fe states in the Pd-based and in the Pt-based alloys is demonstrated. We find a consistent behavior of interacting d states towards the dilute limit. It is concluded that the Fe states that are observed in the photoemission spectra of the dilute alloys have mainly majority-spin character and are, because of the covalent interaction with host states, widely distributed over the energy range of the host d band. The Fe minority-spin band, which is centered near the Fermi level, gradually empties with increasing Fe dilution.

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Language(s): eng - English
 Dates: 1990-08-061991-04-15
 Publication Status: Issued
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevB.43.8903
 Degree: -

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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: 8 Volume / Issue: 43 (11) Sequence Number: - Start / End Page: 8903 - 8910 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008