Issue 24, 2018

Direct measurement of Ni incorporation into Fe3O4(001)


The normal incidence X-ray standing wave (NIXSW) technique has been used to follow the evolution of the adsorption geometry of Ni adatoms on the Fe3O4(001)-(√2 × √2)R45° surface as a function of temperature. Two primary surface region sites are identified: a bulk-continuation tetrahedral site and a sub-surface octahedral site, the latter site being preferred at higher annealing temperatures. The ease of incorporation is linked to the presence of subsurface cation vacancies in the (√2 × √2)R45° reconstruction and is consistent with the preference for octahedral coordination observed in the spinel compound NiFe2O4.

Graphical abstract: Direct measurement of Ni incorporation into Fe3O4(001)

Supplementary files

Article information

Article type
19 Apr 2018
24 May 2018
First published
08 Jun 2018
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2018,20, 16469-16476

Direct measurement of Ni incorporation into Fe3O4(001)

P. T. P. Ryan, Z. Jakub, J. Balajka, J. Hulva, M. Meier, J. T. Küchle, P. J. Blowey, P. K. Thakur, C. Franchini, D. J. Payne, D. P. Woodruff, L. A. Rochford, F. Allegretti, T.-L. Lee, G. S. Parkinson and D. A. Duncan, Phys. Chem. Chem. Phys., 2018, 20, 16469 DOI: 10.1039/C8CP02516A

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