Embodiments may relate to a structure to be used in a neural network. A first column and a second column, both of which are to couple with a substrate. A capacitor structure may be electrically coupled with the first column. An insulator-metal transition (IMT) structure may be coupled with the first column such that the capacitor structure is electrically positioned between the IMT structure and the first column. A resistor structure may further be electrically coupled with the IMT structure and the second column such that the resistor structure is electrically positioned between the second column and the IMT structure. Other embodiments may be described or claimed.