Effects of magnetic clusters on the helicity modulus and the BKT transition in a two dimensional diluted-magnetic system
نویسنده
چکیده
We develop a program to generate a two dimensional square lattice of which the number of magnetic sites and the size of magnetic clusters are adjustable. We adopt the lattice-generating program to study effects of magnetic clusters on the Berezinskii-Kosterlitz-Thouless transition and the helicity modulus in a two dimensional XY model of a diluted magnetic system via hybrid Monte carlo simulations. We further show that the next nearest neighbor interaction is neccesary near a clusterless lattice configuration.
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تاریخ انتشار 2010