HELIUM IN PORES AND IRREGULAR SURFACES

Abstract

We report studies of adsorption of helium in <br />translationally invariant polygonal<br />pores at zero temperature, with emphasis on the route to capillary <br />condensation and the appearance of <br />metastable states. We analyze hysteresis and hysterectic--like <br />phenomena associated to<br /> the existence of multiple equilibrium states in a rhombic pore and<br /> examine the effects of the angular geometry, as opposed to the smooth<br /> curvature of cylindrical tubes.<br /><br />