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Using infrared spectroscopic ellipsometry (IRSE), the optical properties of the Ba0.9Sr0.1TiO3 (BST) ferroelectric thin films with different film thicknesses on Pt/Ti/SiO2/Si substrates prepared by a modified sol-gel method have been investigated in the 2.512.6m wavelength range. By fitting the measured ellipsometric parameter ( and ��) data with a three-phase model (Air/BST/Pt) and the classical...
Chemical preparation, characterisation, and properties are briefly reviewed for transition metalmetalloid ultrafine amorphous alloy particles (UAAP). Special attention is paid to the new solid-state chemical reaction method and the new systems, i.e. P-bearing and B-and-P-bearing systems. These new kinds of materials have some unique properties resulting from the combination of ultrafine size with...
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