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Thermal diffusivity of (Ca1–xSrx)3Co4O9 thin films using transient grating configuration
Published online by Cambridge University Press: 03 March 2011
The past impossibility to create optical diffraction fringe image out of transparent TiO2(100) substrate was overcome by pumping light pulse of 266-nm wavelength. Thermal diffusivities (D) of TiO2(100) substrate and (Ca1–xSrx)3Co4O9 (0 ≤ x ≤ 0.125) thin films can successfully be determined with a newly proposed transient grating configuration method arising from a generic nanoscale measurement technique. The D values obtained at room temperature were 0.04 cm2/s for the former and 0.07–0.12 cm2/s for the latter, respectively.
- Journal of Materials Research , Volume 18 , Issue 10 , October 2003 , pp. 2473 - 2477
- Copyright © Materials Research Society 2003