First-order depinning transition in two-dimensional abraham model: RG approach |
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Authors: | D N Mihajlović |
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Institution: | (1) Faculty of Physics, University of Belgrade, Studentski trg 12, P.O. Box 550, YU-11001 Beograd, Yugoslavia |
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Abstract: | Using a position-space renormalization group (RG) we analyse the competition for an interface between the boundary defect and an additional line of defect bonds in the two-dimensional Abraham model. The RG phase diagram, obtained over the whole range of temperatures and pinning parameters, indicate that beside the continuous wetting transition this model exhibits a finite-temperature interface depinning transition of the first order in agreement with recently obtained exact results. |
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