TY - JOUR AU - Gompper, G. AU - Kroll, D. M. TI - Melting transition of a network model in two dimensions JO - The European physical journal / E VL - 1 SN - 1292-8941 CY - Berlin PB - Springer M1 - PreJuSER-62130 SP - 153 - 157 PY - 2000 N1 - Record converted from VDB: 12.11.2012 AB - The freezing transition of a network model for tensionless membranes confined to two dimensions is investigated by Monte Carlo simulations and scaling arguments. In this model, a freezing transition is induced by reducing the tt ther length. Translational and bond-orientational order parameters and elastic constants are determined as a function of the tether length. A finite-size scaling analysis is used to show that the crystal melts via successive dislocation and disclination unbinding transitions, in qualitative agreement with the predictions of the Kosterlitz-Thouless-Halperin-Nelson-Young theory. The hexatic phase is found to be stable over only a very small interval of tether lengths. KW - J (WoSType) LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000166297000006 DO - DOI:10.1007/PL00014595 UR - https://juser.fz-juelich.de/record/62130 ER -