28.4.4 DoniachSunjic

Function

 y=y_0+\frac{H\cos \left( \frac{a\pi }2+\left( 1-a\right) \arctan \left( \frac{x-x_c}w\right) \right) }{\sqrt{\left( w^2+\left( x-x_c\right) ^2\right) ^{\left( 1-a\right) }}}

Brief Description

Doniach Sunjic function

Sample Curve

DoniachSunjicCur.png

Parameters

Number: 5

Names: y0, xc, H, w, a

Meanings: y0 = Base, xc = Center, H = Unknow, w = Unknow, a = Unknow

Lower Bounds: 0

Upper Bounds: 0

Function File

fitfunc\DoniachSunjic.fdf