Metal-insulator transition in Au-NiO-Ni dual Schottky nanojunctions.
Ni nanowire arrays were fabricated through electrochemical deposition on a template. After a nanoscale NiO layer was formed on the top of the nanowires, a layer of Au paint was coated on the top of the nanowire arrays to construct Au-NiO-Ni dual Schottky nanojunctions, and the structure was characterized at different scales. Within a small range of voltages, extraordinary current jumps were observed at room temperature and at 77 K. The resistance switch effect can be repeated at room temperature, while switching is irreversible at low temperature. The significant change in resistance of the samples does not require doping and may find future applications.
Sun
Jia-Lin
JL
Department of Physics and Key Lab of Atomic and Molecular Nanoscience of Education Ministry, Tsinghua University, Beijing 100084, People's Republic of China.
Zhao
Xingchen
X
Zhu
Jia-Lin
JL