Institut for Fysik og Nanoteknologi, and Interdisciplinary Nanoscience Center (iNANO), Aalborg Universitet, Skjernvej 4A, Aalborg, Denmark.
J Phys Condens Matter. 2010 Apr 7;22(13):135005. doi: 10.1088/0953-8984/22/13/135005. Epub 2010 Feb 25.
We have studied the growth of Ag on bilayer high Co nanoislands on Cu(111) using scanning tunneling microscopy. Noble metal capping of magnetic nanostructures is known to influence the magnetism and knowledge of the growth is therefore important. We find that Ag preferentially nucleates on the Co nanoislands, initially leaving the free Cu sites clean. Furthermore we observe that those Co islands which are capped with Ag are almost completely capped, thus making a perfect multilayered system of Ag/Co/Cu(111). We observe a (9 × 9) reconstruction of the Ag overlayer on Co/Cu(111).
我们使用扫描隧道显微镜研究了双层高钴纳米岛上 Ag 的生长。众所周知，贵金属覆盖磁性纳米结构会影响磁性，因此了解其生长过程非常重要。我们发现 Ag 优先在 Co 纳米岛上成核，最初使自由 Cu 位保持清洁。此外，我们还观察到那些被 Ag 覆盖的 Co 岛几乎完全被覆盖，从而形成了一个完美的 Ag/Co/Cu(111)多层体系。我们观察到 Ag 覆盖在 Co/Cu(111)上的（9×9）重构。
