期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 25, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.255702
关键词
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资金
- Marshall Aid Commemoration Commission
- National Science Foundation
- Royal Society
- ERC grant InsituNANO [279342]
- European Research Council (ERC) [279342] Funding Source: European Research Council (ERC)
We observe the formation of metastable AuGe phases without quenching, during strictly isothermal nucleation and growth of Ge nanowires, using video-rate lattice-resolved environmental transmission electron microscopy. We explain the unexpected formation of these phases through a novel pathway involving changes in composition rather than temperature. The metastable catalyst has important implications for nanowire growth, and more broadly, the isothermal process provides both a new approach to growing and studying metastable phases, and a new perspective on their formation.
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