Langevin function [länzh·van ‚fəŋk·shən]
Langevin function
is shown in the equation below. If . The paramagnetic susceptibility of a classical (non-quantum-mechanical) collection of magnetic dipoles is given by the Langevin function, as is the polarizability of molecules having a permanent electric dipole moment. See Paramagnetism
(electromagnetism)
A mathematical function,L(x), which occurs in the expressions for the paramagnetic susceptibility of a classical (non-quantum-mechanical) collection of magnetic dipoles, and for the polarizability of molecules having a permanent electric dipole moment; given byL(x) = cothx- 1/x.
Langevin function
A mathematical function which is important in the theory of paramagnetism and in the theory of the dielectric properties of insulators. The analytical expression for the Langevin function
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