  Magnetic catalysis of the chiral symmetry breaking and other magnetic
properties of the (2+1)-dimensional Gross--Neveu model are studied taking into
account the Zeeman interaction of spin-1/2 quasi-particles (electrons) with
tilted (with respect to a system plane) external magnetic field. The Zeeman
interaction is proportional to magnetic moment $\mu_B$ of electrons. It is
shown that at $\mu_B\ne 0$ the magnetic catalysis effect is drastically changed
in comparison with the $\mu_B= 0$ case.
