Journal
TECHNICAL PHYSICS LETTERS
Volume 38, Issue 7, Pages 676-679Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063785012070206
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Molecular dynamics simulations show that a gap discrete breather (DB) polarized along the [111] direction can be excited in a crystal with NaCl-type structure and significantly different masses of anions and cations. The DB exists in both a nondeformed crystal and one subjected to significant uniaxial or biaxial elastic deformation. The dependence of the DB frequency on the amplitude at a given deformation is determined.
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