Effects of the presence of Cs impurities on the two-dimensional He phase diagram
نویسندگان
چکیده
The changes in the two-dimensional ~2D! He phase diagram due to the introduction of impurities ~Cs atoms! are estimated using path-integral Monte Carlo simulations. Our results indicate that when we increase the concentration of Cs atoms, the liquid-gas coexistence zone decreases in size and eventually disappears for sCs;0.005 Å , so that 2D He gases will be stable at low temperatures. @S0163-1829~99!03913-2#
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