![]() Single side polished (SSP) or double side polished (DSP), Epi-ready surface Ra 90K, Jc> = 106A/cm2. Strontium Titanate Crystal Substrate Specificationsĥ×5 mm, 5×10 mm, 10×10 mm, 20×20 mm, or special sizes and orientations are available upon request We report a new low-T anomaly on the lattice parameter c measured on a thin polished platelet. LaAIO3 unit cell is only slightly smaller than YBCO cell, in contrast to SrTiO3 lattice constant of SINGLE CRYSTAL SUPERCONDUCTING THIN FILMS 423 3.905, LaAI03 lattice match seems to be more conducive to epitaxial growth of YBCO film. It is found, however, that the analysis is not at all straightforward. of anomalies observed in SrTiO3 at those temperatures. The lattice constant of LaAIO3 is 3.790 which provides a excellent latti- ce match to YBCO film. It is commonly used as a substrate material for superconductor thin films, because Strontium Titanate (SrTiO3) and Y-Ba-Cu-O system (a = 3.89 A) have similar values in the lattice constant. 398-383 In order to compare the effective mass dependence on Nb- and 402-379 La-doping, the lattice parameter 39,40 was chosen. An analysis of the temperature dependence of the lattice constants below the transition temperature shows that the value of the critical exponent for the spontaneous strain (c/a-1) is 0.84. Strontium titanate crystal substrate has its lattice parameters match most materials with a Perovskite crystal structure, and therefore it is a popular crystal substrate for epitaxial growth of many oxide thin films. Strontium Titanate Crystal Substrate Description ![]()
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