TiO 3 (NKN-BZ-BLT) thin films with a thickness of about 2.0 mm were fabricated on a Pt/ (001)MgO substrate by pulsed laser deposition (PLD). The X-ray diffraction pattern (XRD) showed that the NKN-BZ-BLT thin films that were oriented in both the 001 pt and the 101 pt directions [determined by pseudo-tetragonal perovskite (pt)] were grown on the Pt/(001)MgO substrate. A rocking curve measurement revealed that the fluctuations of the crystalline orientation of the 001 pt -and 101 pt -oriented NKN-BZ-BLT grains are very small. The reciprocal space map and pole figure showed that the 001 pt -oriented NKN-BZ-BLT grains epitaxially grew on the Pt/(001)MgO substrate. On the other hand, the 010 pt axis (existing in the in-plane) of the 101 pt -oriented NKN-BZ-BLT grains rotated by 45 for the 100 axis (existing in the in-plane) of the (001)MgO substrate. The dielectric constant " r and the dielectric loss tan of the NKN-BZ-BLT thin films were 682 and 0.076 at 1 kHz, respectively. The P-E hysteresis loops of the NKN-BZ-BLT thin films showed clear ferroelectricity. The remanent polarization P r and coercive electric field E c were 24.5 mC/cm 2 and 29.3 kV/cm, respectively. The NKN-BZ-BLT thin films exhibited larger P r values than NKN-BZ-BLT ceramics. #

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Curie temperature and temperature dependence of the spin susceptibility for ( Fe1-,Co,)Si are calculated by taking into account the effect of spin fluctuations in the Gaussian approximation. Saturation magnetization and the low-temperature specific heat coefficients are calculated making use of the rigid band approximation. Qualitative agreement between the theoretical and experimental results is obtained.Die Curietemperatur, und die Temperaturabhangigkeit der Spinsuszeptibilitat werden fur (B'e,-,Co,)Si unter EinschluB der Spinfluktuationen in Gausscher Naherung berechnet. Die Sattigungsmagnetisierung und die Temperaturkoeffizienten der spezifischen Warme fur niedrige Temperaturen werden mittels der ,,rigid band"-Naherung berechnet. Es wird qualitative ffbereinstimmung zwischen den theoretischen und experimentellen Ergebnissen erhalten.

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