diamagnetism

(noun)

A weak form of magnetism that is only observed in the presence of an external magnetic field; due to an induced magnetic field in an opposite direction.

Related Terms

  • paramagnetism
  • ferromagnetism

Examples of diamagnetism in the following topics:

  • Paramagnetism and Diamagnetism

    • Paramagnetism is the attraction of material while in a magnetic field, and diamagnetism is the repulsion of magnetic fields.
    • Diamagnetism is the property of an object or material that causes it to create a magnetic field in opposition to an externally applied magnetic field.
    • Thus, unlike paramagnets, diamagnets are repelled by magnetic fields, which can lead to its unusual effects, such as levitation of diamagnetic material when located above powerful magnet (as shown in ).
    • However, for materials that display some other form of magnetism (such as ferromagnetism or paramagnetism), the diamagnetic contribution becomes negligible.
    • In addition, all conductors exhibit an effective diamagnetism when they experience a changing magnetic field.
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