Electrical 1D tomography of nanofilaments using in-operando electrical characterization of Pt/NiO/Pt resistive memory cells during FIB milling
In-operando electrical tomography is obtained using electrical measurements during FIB milling. In Pt/NiO/Pt resistive memory cells, the conducting nanofilament has a tree-like structure. This electrical shape is consistent with the crystalline defect map obtained from HRTEM. A subnanometric spatial resolution is achieved. An atomistic model involving oxygen vacancies is proposed.
tomography nio memory fib filament memristor