期刊
NATURE COMMUNICATIONS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms7071
关键词
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资金
- National Centre of Competence in Research `Nanoscience' (NCCR-Nano)
- Swiss Nanoscience Institute (SNI)
- Swiss National Science Foundation [200020-149713, 206021-121461]
- Sao Paulo Research Foundation [2013/04855-0]
- Netherlands Organisation for Scientific Research NWO [700.10.424]
- European Research Council [ERC-2012-StG 307760-SURFPRO]
- University of Basel
- University of Heidelberg
- Linkoping University
- University of Groningen
- Paul Scherrer Institute
- Japan Science and Technology Agency (JST)
- Precursory Research for Embryonic Science and Technology (PRESTO)
Condensation processes are of key importance in nature and play a fundamental role in chemistry and physics. Owing to size effects at the nanoscale, it is conceptually desired to experimentally probe the dependence of condensate structure on the number of constituents one by one. Here we present an approach to study a condensation process atom-by-atom with the scanning tunnelling microscope, which provides a direct real-space access with atomic precision to the aggregates formed in atomically defined 'quantum boxes'. Our analysis reveals the subtle interplay of competing directional and nondirectional interactions in the emergence of structure and provides unprecedented input for the structural comparison with quantum mechanical models. This approach focuses on-but is not limited to-the model case of xenon condensation and goes significantly beyond the well-established statistical size analysis of clusters in atomic or molecular beams by mass spectrometry.
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