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Two- and three-dimensional band structure of ultrathin Ni on Cu(001)


Hoesch, M; Petrovic, V N; Muntwiler, M; Hengsberger, M; Lobo-Checa, J; Greber, T; Osterwalder, J (2009). Two- and three-dimensional band structure of ultrathin Ni on Cu(001). Physical Review B, 79(15):155404-10pp.

Abstract

The momentum-resolved electronic structure of ultrathin films of Ni on Cu(001) is investigated by angle-resolved photoemission in the thickness range between 2 and 6 monolayers and by first-principles slab calculations. While the sp-band Fermi surface of Ni shows a full three-dimensional bulklike topology down to the thinnest films, the d-band Fermi surface rearranges from a bulklike configuration in the thick films to a two-dimensional topology in the thinnest films. The reduced number of d holes in the thin films is explained with the rearrangement of the characteristic K-point lobe of the Ni Fermi surface.

Abstract

The momentum-resolved electronic structure of ultrathin films of Ni on Cu(001) is investigated by angle-resolved photoemission in the thickness range between 2 and 6 monolayers and by first-principles slab calculations. While the sp-band Fermi surface of Ni shows a full three-dimensional bulklike topology down to the thinnest films, the d-band Fermi surface rearranges from a bulklike configuration in the thick films to a two-dimensional topology in the thinnest films. The reduced number of d holes in the thin films is explained with the rearrangement of the characteristic K-point lobe of the Ni Fermi surface.

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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2009
Deposited On:14 Apr 2009 14:48
Last Modified:05 Apr 2016 13:11
Publisher:American Physical Society
ISSN:1098-0121
Additional Information:©2009 The American Physical Society
Publisher DOI:https://doi.org/10.1103/PhysRevB.79.155404
Official URL:http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=PRBMDO000079000015155404000001&idtype=cvips&prog=normal

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