Melting of nanocrystals embedded in a crystal matrix heated by nanosecond laser pulses |
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| Authors: | V A Zinoviev A V Dvurechenskii Zh V Smagina G D Ivlev E I Gatskevich V L Malevich |
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| Institution: | 1. Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
2. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk, 220072, Belarus
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| Abstract: | The kinetics of phase transformations of nanocrystals in a crystal matrix is considered upon non-stationary heating by laser pulses. The melting and crystallization kinetics of nanocrystals is described taking into account their size, shape, elemental composition, and elastic deformations appearing due to the mismatch of the lattice constants for nanocrystals and the matrix. The possibility of decreasing the dispersion of nanocrystals over their size in heterostructures with quantum dots is predicted. As an example, melting of Ge nanocrystals in a Si matrix is considered. |
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