The Curie-Weiss Law

The Curie-Weiss Law describes how a material's magnetic susceptibility (its ability to become magnetized) changes with temperature. It states that susceptibility increases as temperature decreases and follows a linear pattern when plotting its reciprocal against temperature. The law introduces a temperature called the Curie temperature, where magnetic behavior shifts—above this, the material is paramagnetic (weakly attracted to magnets), and below it, it can become ferromagnetic (strongly magnetized). Essentially, the law helps predict how materials respond to magnetic fields based on their temperature, reflecting interactions among magnetic moments within the material.