Db. Abraham et F. Latremoliere, CORNER SPONTANEOUS MAGNETIZATION, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 50(1), 1994, pp. 180000009-180000011
The spontaneous magnetization of a comer spin on a square planar Ising
ferromagnet with free boundary conditions is obtained exactly, confir
ming conformal predictions.