abstract:In a paramagnetic material the magnetization of the material is (approximately) directly proportional to an applied magnetic field. However, if the material is heated, this proportionality is reduced: for a fixed value of the field, the magnetization is (approximately) inversely proportional to temperature.
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the principle that the magnetic susceptibility of a paramagnetic substance is inversely proportional to its thermodynamic temperature 居里定律
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see also
Curie-Weiss law