Commit2 JT 032519

\documentclass[preview]{standalone}

\usepackage{varwidth}

\usepackage[utf8x]{inputenc}

\usepackage{amsmath, amssymb, graphics, setspace}

\begin{document}

\begin{varwidth}{50in}

  \begin{equation}

    \frac{d \vec{s}_{i}}{dt} = \lambda\, \vec{s}_{i} \times\left( \vec{\omega}_{i} \times\vec{s}_{i} \right)

    \nonumber

  \end{equation}

\end{varwidth}

\end{document}

\documentclass[preview]{standalone}

\usepackage{varwidth}

\usepackage[utf8x]{inputenc}

\usepackage{amsmath, amssymb, graphics, setspace}

\begin{document}

\begin{varwidth}{50in}

  \begin{equation}

    {\Delta t}_{\rm max} = \frac{2\pi}{\kappa

    \left|\vec{\omega}_{\rm max} \right|} 

    \nonumber

  \end{equation}

\end{varwidth}

\end{document}

:c,image(Eqs/min_spin_damping.jpg)

with lambda a damping coefficient (similar to a Gilbert damping)

with lambda a damping coefficient (similar to a Gilbert

damping).

Lambda can be defined by setting the {alpha_damp} keyword with the 

"min_modify"_min_modify.html command. 

NOTE: The {spin} style replaces the force tolerance by a torque

tolerance. See "minimize"_minimize.html for more explanation. 

[Restrictions:] none

[Restrictions:] 

This minimization procedure is only applied to spin degrees of

fredom for a frozen lattice configuration.

[Related commands:]