Abstract:
We consider polymers made of magnetic monomers (Ising or Heisenberg-like) in a good solvent. These polymers are modeled as self-avoiding walks on a cubic lattice, and the ferromagnetic interaction between the spins carried by the monomers is short-ranged in space. At low temperature, these polymers undergo a magnetic induced first order collapse transition, that we study at the mean field level. Contrasting with an ordinary point, there is a strong jump in the polymer density, as well as in its magnetization. In the presence of a magnetic field, the collapse temperature increases, while the discontinuities decrease. Beyond a multicritical point, the transition becomes second order and -like. Monte Carlo simulations for the Ising case are in qualitative agreement with these results.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received 11 February 1999
Rights and permissions
About this article
Cite this article
Garel, T., Orland, H. & Orlandini, E. Phase diagram of magnetic polymers. Eur. Phys. J. B 12, 261–268 (1999). https://doi.org/10.1007/s100510051003
Issue Date:
DOI: https://doi.org/10.1007/s100510051003