Thermodynamics of a one-dimensional lattice system with long-range interelectron repulsion

The thermodynamic characteristics of one-dimensional lattice electron systems with long-range interelectron interactions are explicated and studied at arbitrary temperature T and pressure P. Only interactions between neighboring particles are taken into account. Electron-electron correlations are found to be controlled only by the ratio PIT, increases in which produce a continuous transition from a weakly nonideal gas to an electron ''crystal'' with filling factor 1/q,q = 1,2,.... This is a remnant of the devil's staircase which obtains at T = 0. It is shown that with a decrease in P the crystal periods, q, increase, the transitions occurring via narrow regions of a liquidlike state. Charge carriers in the ''crystals'' are discrete solitons with a fractional charge e* = +/- e/q.