Sm[sub x]Nd[sub 1-x]NiO[sub 3] thin-film solid solutions with tunable metal–insulator transition synthesized by alternate-target pulsed-laser deposition

Ambrosini, Andrea; Hamet, Jean-François
February 2003
Applied Physics Letters;2/3/2003, Vol. 82 Issue 5, p727
Academic Journal
Thin-film solid solutions of Sm[sub x]Nd[sub 1-x]NiO[sub 3] were synthesized on NdGaO[sub 3] substrates by pulsed-laser deposition using alternating NdNiO[sub 3] and SmNiO[sub 3] targets. The films were characterized by x-ray diffraction and variable-temperature four-probe conductivity measurements. The films grow in the {100}[sub pseudocubic] direction. There is a nearly linear increase of the metal-insulator transition from 199 K for x = 0 to 378 K for x = 1, with the composition corresponding to x = 0.6 displaying a transition near room temperature.


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