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 straight phi. The value of exponent alpha [in rho(t) approximately t(alpha), where rho(t) is the number density] exhibits a dramatic crossover feature near straight phi = 0 degrees or 180 degrees. It is shown that the functional dependence of alpha on straight phi is governed by the degree of shape dependent frustration of the adsorption process. The crucial role of the geometrical character of the zero-area object in RSA dynamics is thus established.