Paramagnetism
Paramagnetism is a form of magnetism whereby some materials are weakly attracted by an applied magnetic field and form induced magnetic fields in the direction of the magnetic field. Paramagnetic materials include most chemical elements and some compounds. They have a relative magnetic permeability that is a little bit higher than 1. The magnetic moment caused by the applied magnetic field is linear in the field strength and weak.[1]
Paramagnetism Media
Liquid oxygen (blue) can be suspended between the poles of a strong magnet as a result of its paramagnetism.
Paramagnetism, ferromagnetism and spin waves
In a metal, the application of an external magnetic field increases the density of electrons with spins antiparallel with the field and lowers the density of the electrons with opposite spin. Note: The arrows in this picture indicate spin direction, not magnetic moment. The direction of the magnetic moment is opposite of that of the spin since electrons carry a negative charge.
Idealized Curie–Weiss behavior; N.B. TC=θ, but TN is not θ. Paramagnetic regimes are denoted by solid lines. Close to TN or TC the behavior usually deviates from ideal.
References
- ↑ Miessler, Gary L., 1949-. Inorganic chemistry (2004). Upper Saddle River, N.J.: Pearson Education. ISBN 0-13-035471-6. OCLC 52165864.
