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Pierre Curie discovered this relation, now known as Curie's law, by fitting data from experiment. It only holds for high temperatures and weak magnetic fields. It only holds for high temperatures and weak magnetic fields.
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Pierre Curie's grandfather, Paul Curie (1799–1853), a doctor of medicine, was a committed Malthusian humanist and married Augustine Hofer, daughter of Jean Hofer and great-granddaughter of Jean-Henri Dollfus, great industrialists from Mulhouse in the second half of the 18th century and the first part of the 19th century.
In magnetism, the Curie–Weiss law describes the magnetic susceptibility χ of a ferromagnet in the paramagnetic region above the Curie temperature: = where C is a material-specific Curie constant, T is the absolute temperature, and T C is the Curie temperature, both measured in kelvin.
Curie's law: Physics: Pierre Curie: Curie–Weiss law: Physics: Pierre Curie and Pierre-Ernest Weiss: D'Alembert's paradox D'Alembert's principle: Fluid dynamics, Physics: Jean le Rond d'Alembert: Dalton's law of partial pressure: Thermodynamics: John Dalton: Darcy's law: Fluid mechanics: Henry Darcy: De Bruijn–Erdős theorem: Mathematics ...
While some substances obey the Curie law, others obey the Curie-Weiss law. = T c is the Curie temperature. The Curie-Weiss law will apply only when the temperature is well above the Curie temperature. At temperatures below the Curie temperature the substance may become ferromagnetic. More complicated behaviour is observed with the heavier ...
Both Curie's law and the Curie–Weiss law fail as the temperature approaches 0 K. This is because they depend on the magnetic susceptibility, which only applies when the state is disordered. [34] Gadolinium sulfate continues to satisfy Curie's law at 1 K. Between 0 and 1 K the law fails to hold and a sudden change in the intrinsic structure ...
Curie's principle, or Curie's symmetry principle, is a maxim about cause and effect formulated by Pierre Curie in 1894: [1] the symmetries of the causes are to be found in the effects. [2] [3] [4] The idea was based on the ideas of Franz Ernst Neumann and Bernhard Minnigerode. Thus, it is sometimes known as the Neuman–Minnigerode–Curie ...