Editing Fermi-Jagla model
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:<math>\Phi_{12}(r) = \epsilon_0 \left[ \left( \frac{a}{r} \right)^n + \frac{A_0}{1+\exp \left[ \frac{A_1}{A_0} (\frac{r}{a}-A_2) \right]} - \frac{B_0}{1+\exp \left[ \frac{B_1}{B_0} (\frac{r}{a}-B_2) \right]} \right]</math> | :<math>\Phi_{12}(r) = \epsilon_0 \left[ \left( \frac{a}{r} \right)^n + \frac{A_0}{1+\exp \left[ \frac{A_1}{A_0} (\frac{r}{a}-A_2) \right]} - \frac{B_0}{1+\exp \left[ \frac{B_1}{B_0} (\frac{r}{a}-B_2) \right]} \right]</math> | ||
There is a relation between | There is a relation between Fermi function and hyperbolic tangent: | ||
:<math>\frac{1}{e^x+1}=\frac{1}{2}-\frac{1}{2}\tanh \frac{x}{2}</math> | :<math>\frac{1}{e^x+1}=\frac{1}{2}-\frac{1}{2}\tanh \frac{x}{2}</math> | ||
Using this relation one can show that Fermi-Jagla model is equivalent to | Using this relation one can show that Fermi-Jagla model is equivalent to [[Fomin potential]] introduced earlier. | ||
==References== | ==References== | ||
<references/> | <references/> |