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Phys. Rev. B 48, 2577–2582 (1993)

[Issue 4 – 15 July 1993 ]

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Mössbauer-effect investigation of the Fe(001)/Ag(001) interface

P. J. Schurer

Royal Roads Military College, Victoria, British Columbia, Canada V0S 1B0

Z. Celinski and B. Heinrich

Surface Physics Laboratory, Physics Department, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6

The Fe(001)/Ag(001) interface in molecular-beam-epitaxy-grown (001) structures has been investigated using conversion electron Mössbauer spectroscopy. One monolayer of ⁵⁷Fe is used as a probe layer. The Mössbauer-effect study shows that the Fe/Ag interface consists of atomic terraces, one atomic layer in height. Three Fe sites can be distinguished at the Fe/Ag interface. The average size of the terraces can be determined from the relative intensity of the three components in the Mössbauer spectrum. By growing the sample at 420 K the terrace size can be increased significantly. However, at this temperature, diffusion of the ⁵⁷Fe into the underlying Fe layers becomes important.

©1993 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v48/p2577
DOI: 10.1103/PhysRevB.48.2577
PACS: 76.80.+y, 68.55.Bd, 75.70.Cn

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