Key points are not available for this paper at this time.
Experimental evidence is presented for an electron-liquid to electron-crystal phase transition in a sheet of electrons on a liquid-He surface. The phase transition has been studied for electron areal densities from 310^8 cm^-2 to 910^8 cm^-2 and has yielded melting temperatures between 0. 35 and 0. 65 K. The phase transition occurs at =13715, where is a measure of the ratio of potential energy to kinetic energy per electron.
Grimes et al. (Mon,) studied this question.