# Boundary critical behavior of the three-dimensional Heisenberg universality class

@article{Toldin2020BoundaryCB, title={Boundary critical behavior of the three-dimensional Heisenberg universality class}, author={Francesco Parisen Toldin}, journal={arXiv: Statistical Mechanics}, year={2020} }

We study the boundary critical behavior of the three-dimensional Heisenberg universality class, in the presence of a bidimensional surface. By means of high-precision Monte Carlo simulations of an improved lattice model, where leading bulk scaling corrections are suppressed, we prove the existence of a special phase transition, with unusual exponents, and of an extraordinary phase with logarithmically decaying correlations. These findings contrast with naive arguments on the bulk-surface phase…

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