Curie point (Curie temperature)

Target entity: Curie point (Curie temperature)
Context triple: [Pierre Curie, knownFor, Curie point (Curie temperature)]

• A. Steinmetz’s law of hysteresis
  Steinmetz’s law of hysteresis is an empirical formula that relates the energy loss in magnetic materials to the maximum magnetic flux density, widely used in electrical engineering to estimate core losses in transformers and other AC magnetic devices.
• B. Meissner effect
  The Meissner effect is the phenomenon in which a superconductor expels magnetic fields from its interior when cooled below its critical temperature, leading to perfect diamagnetism.
• C. Szilard–Chalmers effect
  The Szilard–Chalmers effect is a nuclear chemistry phenomenon in which atoms that undergo neutron capture and become radioactive are chemically separated from their original, non-activated atoms due to recoil-induced disruption of their chemical bonds.
• D. hyperpyron
  The hyperpyron was a high-value Byzantine gold coin introduced in the 11th century that became the empire’s principal monetary unit and a key currency in medieval Mediterranean trade.
• E. de Haas–van Alphen effect
  The de Haas–van Alphen effect is a quantum oscillatory phenomenon in metals where the magnetization varies periodically with applied magnetic field, allowing precise mapping of the electronic structure and Fermi surface.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Curie point (Curie temperature)
Target entity description: The Curie point (Curie temperature) is the critical temperature at which a ferromagnetic or ferrimagnetic material loses its permanent magnetism and becomes paramagnetic.

• A. Steinmetz’s law of hysteresis
  Steinmetz’s law of hysteresis is an empirical formula that relates the energy loss in magnetic materials to the maximum magnetic flux density, widely used in electrical engineering to estimate core losses in transformers and other AC magnetic devices.
• B. Meissner effect
  The Meissner effect is the phenomenon in which a superconductor expels magnetic fields from its interior when cooled below its critical temperature, leading to perfect diamagnetism.
• C. Szilard–Chalmers effect
  The Szilard–Chalmers effect is a nuclear chemistry phenomenon in which atoms that undergo neutron capture and become radioactive are chemically separated from their original, non-activated atoms due to recoil-induced disruption of their chemical bonds.
• D. hyperpyron
  The hyperpyron was a high-value Byzantine gold coin introduced in the 11th century that became the empire’s principal monetary unit and a key currency in medieval Mediterranean trade.
• E. de Haas–van Alphen effect
  The de Haas–van Alphen effect is a quantum oscillatory phenomenon in metals where the magnetization varies periodically with applied magnetic field, allowing precise mapping of the electronic structure and Fermi surface.
• F. None of above. chosen