This non-magnetic phenomenon occurs in the 2-dimensional Ising model when aligned magnetic moments become disordered at the Curie temperature.
It's not superconductivity, but Landau formulated a theory of these phenomena divided into universality classes by their critical exponents. This non-magnetic phenomenon occurs in the 2-dimensional Ising model when aligned magnetic moments become disordered at the Curie temperature. Second-order ones are continuous and first-order ones involve latent heat. A diagram of these for water is shaped like a Y and plots pressure against temperature. They occur at critical points, when several forms of a substance can coexist. For 10 points, name these transformations which include melting and boiling.
It's not superconductivity, but Landau formulated a theory of these phenomena divided into universality classes by their critical exponents.
phase transitions [accept phase changes; accept critical transitions before “critical points”] &lt;SH&gt;