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Pengyuan Zhang, Ming Liu, Yu-Ke Zhu, Jiehe Sui. A method for the direct measurement of chemical bonds[J]. Materials Lab, 2025, 4(3): 250009. doi: 10.54227/mlab.20250009
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A method for the direct measurement of chemical bonds
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Abstract
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References
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Pengyuan Zhang, Ming Liu, Yu-Ke Zhu, Jiehe Sui. A method for the direct measurement of chemical bonds[J]. Materials Lab, 2025, 4(3): 250009. doi: 10.54227/mlab.20250009
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Figure 1.
Schematic diagram of APT localized chemical bond characterization. a Sketch of a bond-breaking experiment for a sequence of successful pulses exhibiting high PMI, as well as b a sketch of the same experiment exhibiting high PME. SI and MI respectively stand for a single ion and molecular ions, while SE and ME respectively stand for a single event and multiple events to be dislodged upon bond rupture. c Demarcation of different chemical bonding mechanisms by PMI and PME: metals (in blue), metavalent solids (in green), and covalently bonded compounds (in red). d The corresponding bonding mechanisms of (GeTe)0.9(PbSe)0.05(PbS)0.05 and (GeTe)0.9(SnSe)0.05(SnS)0.05 are revealed by 3D PME maps characterized by APT.
