Grain-boundary scattering in aluminium films deposited on to calcite substrate

Electrical resistivity and temperature coefficient of resistivity of polycrystalline aluminium films deposited onto calcite substrates have been measured in situ. It was observed that films deposited at 130° C substrate temperature show reversible and reproducible behaviour with thermal cycling. The grain-boundary scattering theory of Mayadas and Shatzkes reproduces the experimental observations quite faithfully with the coefficient of specular reflection p=0 and grain-boundary reflection coefficient R=0.38 indicating that the grain-boundary scattering plays a significant role in electron transport in aluminium film deposited on to calcite substrate.