1. Spin conversion: magnetism

Before being called spin conversion, the phenomenon observed was a magnetic anomaly. In fact, at the beginning of the 20th century, the field of magnetism was familiar with diamagnetism, paramagnetism and its classic deviations due to ferromagnetism or antiferromagnetism, which made it possible to obtain magnets. . Paramagnetism is mainly described by Curie's law, which reports a dependence of magnetic susceptibility inversely proportional to temperature. This magnetic susceptibility measures a sample's response to the application of an external...