Shape effects in random sequential adsorption of zero-area angled objects on a continuum substrate

Random sequential adsorption (RSA) of zero-area symmetric angled objects on a continuum substrate is studied for the full range (0 degrees-180 degrees ) of values of the arm angle phi. The value of exponent alpha [in rho (t) s imilar to t(alpha), where rho (t) is the number density] exhibits a dramati c crossover feature near phi = 0 degrees or 180 degrees. It is shown that t he functional dependence of alpha on phi is governed by the degree of shape dependent frustration of the adsorption process. The crucial role of the g eometrical character of the zero-area object in RSA dynamics is thus establ ished. PACS numbers: 82.20.Mj, 05.70.Ln, 68.10.Jy.