Single-atom manipulation of Co embedded in Cu(001) surfaces

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Abstract

Scanning tunneling microscopy (STM) is used to study the STM-tip-induced movement of Co atoms in a dild. Co/Cu(001) surface alloy. By varying the sample temp. from 4 K up to room temp., we measured the threshold temp. at which an incorporated Co atom can be moved, which is approx. 150 K. A vacancy-mediated mechanism is responsible for the obsd. movement, in which vacancies under the tip area exchange with an embedded Co atom. Finally, we present for the first time a selective movement of single Co embedded atoms. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)2014-2017
JournalJapanese Journal of Applied Physics, Part 1 : Regular Papers and Short Notes & Review Papers
Volume45
Issue number3B
DOIs
Publication statusPublished - 2006

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