Langevin

Contents 1 Function 2 Brief Description 3 Sample Curve 4 Parameters 5 Script Access 6 Function File 7 Category

Function

\[y=y_0+C\left( \coth \left( x-xc\right) -\frac 1{x-xc}\right) \]

\[cothz=\frac{e^z+e^{-z}}{e^z-e^{-z}}\]

Brief Description

Langevin function for magnetic polarization.

Sample Curve

Parameters

Number: 3

Names: y0, xc, C

Meanings: y0 = offset, xc = center, C = Amplitude

Lower Bounds: noe

Upper Bounds: none

Script Access

nlf_Langevin(x, y0,xc,C)

Function File

FITFUNC\LANGEVIN.FDF

Category

Exponential