UNUSUAL MAGNETIC PROPERTIES OF RARE-EARTH TITANIUM OXIDES RTiO3: EFFECT OF THE RARE EARTH ON THE MAGNETIC MOMENT OF TITANIUM IN LaxY1 - xTiO3 AND GdTiO3.

The rare-earth orthotitanites, RTiO//3, are a relatively new series of materials with properties quite different from those of the isostructural orthoferrites (RFeO//3), orthochromites (RCrO//3) and orthovanadites (RVO//3). The properties of these materials are strongly dependent on the idenitity of the rare-earth ion. For example, LaTiO//3 is metallic and Pauli paramagnetic, while YTiO//3 is ferromagnetic (T//c equals 29 K) and semiconducting. …