  We present a first discussion and analysis of the physical properties of a
new exact collisionless equilibrium for a one-dimensional nonlinear force-free
magnetic field, namely the Force-Free Harris Sheet. The solution allows any
value of the plasma beta, and crucially below unity, which previous nonlinear
force-free collisionless equilibria could not. The distribution function
involves infinite series of Hermite Polynomials in the canonical momenta, of
which the important mathematical properties of convergence and non-negativity
have recently been proven. Plots of the distribution function are presented for
the plasma beta modestly below unity, and we compare the shape of the
distribution function in two of the velocity directions to a Maxwellian
distribution.
