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Article Dans Une Revue Journal of Physics D: Applied Physics Année : 2009

Thermochromic effect in NdNiO 3−δ thin films annealed in ambient air

Résumé

The synthesis of NdNiO3 perovskite structure was achieved by soft post deposition annealing of initially amorphous thin films reactively sputter deposited on silicon substrates. The physical measurements were fully consistent with the properties expected for the thermochromic NdNiO3 phase. Upon heating, the optical transmission that was correlated with the electrical properties decreased in the infrared domain showing a thermochromic effect in this optical region. The metal–insulator transition temperature was found to be −68 °C for the specimen tested and the jump in resistance at the transition was 1.4 orders of magnitude. The state-of-the-art methods that normally involve an annealing at a high oxygen pressure (200 × 105 Pa) or epitaxial stabilization were considerably improved in this work by the use of dc sputtering and the optimization of the deposition conditions. Therefore, the novel soft process proposed here opens up numerous research possibilities.

Dates et versions

hal-02056594 , version 1 (04-03-2019)

Identifiants

Citer

F Capon, D. Horwat, J. F. Pierson, M Zaghrioui, P. Laffez. Thermochromic effect in NdNiO 3−δ thin films annealed in ambient air. Journal of Physics D: Applied Physics, 2009, 42 (18), pp.182006. ⟨10.1088/0022-3727/42/18/182006⟩. ⟨hal-02056594⟩
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