Stable centred tetragonal phases in the hard core Yukawa system.
نویسندگان
چکیده
The hard core Yukawa system, consisting of particles with an impenetrable core and interacting via a repulsive Yukawa pair potential, is known to solidify either in a bcc or fcc crystal. Using optimization strategies based on genetic algorithms we give evidence that at zero temperature an additional centred tetragonal phase structure in the range of high packing fractions emerges.
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عنوان ژورنال:
- Journal of physics. Condensed matter : an Institute of Physics journal
دوره 21 47 شماره
صفحات -
تاریخ انتشار 2009