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DY: Dynamik und Statistische Physik
DY 53: Phasenübergänge und kritische Phänomene
DY 53.2: Talk
Friday, March 27, 1998, 10:45–11:00, H2
Phase transition in frustrated vectors spins systems in three dimensions — •D. Loison — Institut f"ur Theoretische Physik, Freie Universit"at , Arnimalee 14, D-14195 Berlin
I study the frustrated vectors spins model in three dimensions by Monte Carlo simulations.
The renormalisation group predict that the phase transition is first order when the number of component (n) of spin is below a limit value (nc) and second order above.
I find the same limit nc as renormalisation group studies, however, the critical exponents above this value are slighty different as predicted.