Abstract

The rare-earth ion containing Langmuir-Blodgett (LB) monolayers have attracted considerable attention recently as potential literally 2D magnetic structures. Many questions concerning the magnetic behavior of rare-earth ion containing monolayers (ML) are still opened to be answered. For example, if such ML show a ferromagnetic transition at all. If they do, will the transition temperature T_c^Surface be shifted to higher or lower temperature with respect to the bulk T_c? Magnetization induced second harmonic generation (MSHG) has attracted significant attention recently as an extra sensitive probe of surface magnetism and magnetic properties of thin films.¹ In the present paper, the magnetic properties of Gd-containing LB films are studied by means of the SHG spectroscopy and nonlinear magneto-optical Kerr effect (NOMOKE).

© 1999 Optical Society of America