Promoting atoms into delocalised long-living magnetically modified state using Atomic Force Microscopy

Promoting atoms into delocalised long-living magnetically modified state using Atomic Force Microscopy
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使用原子力显微镜促进原子进入离域长寿命磁改性状态

DOI:
10.1021/acs.nanolett.6b03203
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发表时间:
2017
期刊:
影响因子:
10.8
通讯作者:
Y. Sugawara and I. Stich
Y. Sugawara and I. Stich
中科院分区:
材料科学1区
文献类型:
--
作者:
Y. Kinoshita;R. Turansky;J. Brndiar;Y. Naitoh;Y. J. Li;L. Kantorovich;Y. Sugawara and I. Stich

文献摘要

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我们报道了在氧化铜表面的超高真空中对Co原子进行低温原子力显微操作,在这种操作中,被操纵的原子在宏观时间内保持在几个表面单位细胞以上的离域。除了无处不在的短距离尖端产生的化学力外,通过侧向操纵预先安排在表面上的Co纳米结构,通过金属电荷密度的弗里德尔振荡产生的远程力也被使用。我们证明了我们的操作方案需要对Co原子的自旋状态进行机械控制。
We report on a low-temperature atomic force microscropy manipulation of Co atoms in ultrahigh vacuum on an oxidized copper surface in which the manipulated atom is kept delocalized above several surface unit cells over macroscopic times. The manipulation employed, in addition to the ubiquitous short-range tip-generated chemical forces, also long-range forces generated via Friedel oscillations of the metal charge density due to Co nanostructures prearranged on the surface by lateral manipulation. We show that our manipulation protocol requires mechanical control of the spin state of the Co atom.