Langevin theory of paramagnetism

Langevin theory of paramagnetism

[länzh·van ¦thē·ə·rē əv ‚par·ə′mag·nə‚tiz·əm]
(electromagnetism)
A theory which treats a substance as a classical (non-quantum-mechanical) collection of permanent magnetic dipoles with no interactions between them, having a Boltzmann distribution with respect to energy of interaction with an applied field.