%0 Journal Article
%A Clavero, C.
%A Bode, M.
%A Bihlmayer, G.
%A Blügel, S.
%A Lukaszew, R. A.
%T Island-assisted interface alloying and magnetic polarization at submonolayer V/Cr(001) interfaces
%J Physical review / B
%V 82
%N 8
%@ 1098-0121
%C College Park, Md.
%I APS
%M PreJuSER-11193
%P 085445
%D 2010
%Z This work was partially supported by NSF-DMR under Grant No. 0605661, and the Research Corporation. Use of the Center for Nanoscale Materials at Argonne National Laboratory was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
%X Island-assisted interface alloying was observed during submonolayer deposition on Cr(001) substrates at 525 K. Scanning tunneling spectroscopy suggests atomic interchange at the center of the islands during the early stages of growth, giving rise to a Cr core in the center of the island and a gradually increasing V concentration toward the island rim. The existence of a VCr alloy with equiatomic composition is concluded by comparing tunneling spectra measured at the island rim with density-functional theory calculations. Coalescence of the initial islands gives rise to inhomogeneous alloying at monolayer coverage. Antiferromagnetic coupling between the islands and the Cr(001) substrate is found for coverages up to 0.50 atomic layers. At higher coverages, no magnetic contrast was observed.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000281295200007
%R 10.1103/PhysRevB.82.085445
%U https://juser.fz-juelich.de/record/11193