critical field

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The critical value of the magnetic flux density of a magnetic field, above which the superconductivity of a superconductor is destroyed. This value depends on both the temperature and the nature of the superconducting substance. It is possible for the critical field to be caused by the superconducting current. This means that at any temperature beneath the transition temperature of the superconductor there must be some critical maximum value for the superconducting current.

Subjects: Physics.

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