Dynamic long-period nanosized states in lattice structure |
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Authors: | S V Dmitriev A A Nazarov A I Potekaev A I Pshenichnyuk and L Z Khadeeva |
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Institution: | (1) Institute for Problems of Superplasticity of Metals RAS, Ufa, Russia;(2) V.D. Kuznetsov Siberian Physical technical Institute at TSU, Tomsk, Russia;(3) Ufa State Aviation-Engineering University, Ufa, Russia |
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Abstract: | Using a biatomic chain of atoms as an example, whose interaction was represented by the Morse potential, we revealed a possibility
for a long-lived, dynamic, long-period, nanosized state to persist in the lattice structure. This nanosized structure (in
the case in question, the length of the spatial period of energy localization was found to be 16–20 nm) is generated under
excitation of a vibrational short-wave mode, with the atoms of the light component only participating. The resulting dynamic
nanostructures are principally different in their nature and characteristics from those described earlier and developed via
a mechanism of modulation instability of short-wave vibrational modes.
Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 21–26, February, 2009. |
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Keywords: | weakly stable states dynamic long-period structures |
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