20 citations · 60 across the 6 of their papers we have counts for
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Spin-spin correlation function of the 2D XY model with weak site or bond dilution
Oleksandr Kapikranian
The spin-spin correlation function of the 2D XY model decays as a power law at all temperatures below the Berezinskii-Kosterlitz-Thouless transition point with a temperature depend…
Interplay of topological and structural defects in the 2D XY model
Oleksandr Kapikranian, Bertrand Berche, Yurij Holovatch
The present work is devoted to the investigation of the interaction between vortices (topological defects) and site-impurities (structural defects) in the 2D XY model and its influ…
Perturbation expansion for the diluted two-dimensional XY model
Oleksandr Kapikranian, Bertrand Berche, Yurij Holovatch
We study the quasi-long-range ordered phase of a 2D XY model with quenched site-dilution using the spin-wave approximation and expansion in the parameter which characterizes the de…