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Electron microscopy

Phase transition singled out

Four-dimensional electron microscopy has been applied to the detailed characterization of metal–organic-framework nanoparticles undergoing an electronic transition. The transition characteristics of a single particle were found to differ from those of an ensemble, and also to vary from one nanoparticle to the next.

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Figure 1: The origin of the difference between high spin–low spin (HS–LS) phase transitions in a single nanoparticle and in a nanoparticle ensemble can be understood in terms of the heat flow in the system.


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Correspondence to Nigel D. Browning.

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Browning, N. Phase transition singled out. Nature Chem 5, 363–364 (2013).

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