Computer simulation studies of a layered pancake system using the substrate model

Fangohr, H., Dodgson, M.J.W., Koshelev, A.E., de Groot, P.A.J. and Cox, S.J. (2002) Computer simulation studies of a layered pancake system using the substrate model. Condensed Matter and Materials Physics Conference 2002 and the 19th General Conference of the EPS Condensed Matter Division, Brighton, UK. 01 Jan 2002.

Abstract

We study layered pancake systems numerically in the limit of zero Josephson coupling. We take into account the long-range nature of the pancake interaction in the c-direction, by employing the substrate model[1]: all attractive out-of-layer interactions are represented by a substrate potential, which pancakes experience in addition to the in-layer pancake repulsion. Using a time-averaged pancake-density, we compute a new substrate potential iteratively. We start with a substrate corresponding to a pancake solid at zero temperature. The self-consistent method then converges, depending on temperature, either to a lattice or a pancake liquid. Using our method, we compute the melting line for a three-dimensional pancake system with electromagnetic interactions.

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Contributors

Author: H. Fangohr

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