Modulation of metal-insulator transitions of NdNiO₃/LaNiO₃/NdNiO₃ trilayers via thickness control of the LaNiO₃ layer.

ABSTRACT: Over the last few decades, manipulating the metal-insulator (MI) transition in perovskite oxides (ABO₃) via an external control parameter has been attempted for practical purposes, but with limited success. The substitution of A-site cations is the most widely used technique to tune the MI transition. However, this method introduces unintended disorder, blurring the intrinsic properties. The present study reports the modulation of MI transitions in [10 nm-NdNiO₃/t-LaNiO₃/10 nm-NdNiO₃/SrTiO₃ (100)] trilayers (t = 5, 7, 10, and 20 nm) via the control of the LaNiO₃ thickness. Upon an increase in the thickness of the LaNiO₃ layer, the MI transition temperature undergoes a systematic decrease, demonstrating that bond d

SUBMITTER: Nguyen T 

PROVIDER: S-EPMC6934756 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature