Paramagnetism (Noun)

Materials like aluminum or platinum become magnetized in a magnetic field but it disappears when the field is removed.

Nouns denoting natural phenomena.

Paramagnetism is a form of magnetism whereby some materials are weakly attracted by an externally applied magnetic field, and form internal, induced magnetic fields in the direction of the applied magnetic field.
In contrast to ferromagnetism, paramagnetism does not persist when the magnetic field is removed, and the material returns to its non-magnetic state.
Materials like aluminum or platinum exhibit paramagnetism, becoming magnetized in a magnetic field but losing their magnetization when the field is removed.
The paramagnetism of certain materials can be utilized in applications such as magnetic resonance imaging, where the material's magnetic properties are temporarily altered by an external field.
Paramagnetism is also an important property in the study of superconductors, where it can affect the material's ability to expel magnetic fields and maintain its superconducting state.